Have one. In ground. It's a terrible ROI. You pay for that pump to run 365 days a year. But realistically it's a very small window in which you actually like using it.
Chemicals. Repair and maintenance chores can be a PETA. Today was spent replacing the seals on the pump. Also will have to replace the seals on a diverter valve further upstream on the incoming/suction side. It's sucking in air somewhere, so when it shuts off... the built-up air pressure blasts water backwards thru it and the skimmer bubbles up a bunch of water. Then... in the AM... when timer kicks on... since that air pocket going backwards thru it creates a void... pump is therefore not primed. So gotta open it up...poor water in to prime. So therefore it's not an automatic thing at the moment, thus disallows you to hunt, since you can't rely on the fam to handle this isht. And...if they forget and don't... the motor will heat up and potentially damage the seals in there, since no water flowing to cool it back down.
And ya gotta remember to fire up your heater occasionally and let it run a bit. Otherwise spiders get in there and do things like spin webs across pilot holes, requiring you to do surgery and disassemble the parts related to that and clean the blocking materials outta there.
It's cool when you're hosting a pool party and I like having the house full of people, since I'm so isolated working from home all the time. But... it's sooooo NOT worth the trouble. Having said that... I would say that investing in a largish Hot tub would be a not so bad investment.
Cause here's the dealio... once you and your friends groups advance in age... it's like pulling teeth getting these older b**ches to have enough drinks in them to where they will finally get in the damn pool. Since they are more apprehensive about their bodies appearance in a bathing suit. It's soo exasperating some times. And instead of EZ-UP's... don't use them... use individual Umbrellas... otherwise the stick-in-the-mud typed all hundle under the shade and never go in the damn pool!
You have to orchestrate and plan your whole event with experience and cunning, with the single thought in mind of making sure the women get into the spirit. Like any party, you get the women having a good time, and everybody will have a good time. Which dictates you crafting the right kind of environment. One tool that worked very well last few years has been starting off with 360 Double Chocolate Vodka Shots! They were well received, even by ones I'd judge as tea-totallers.
Also... you end up having to carefully plan where you place items in the backyard around the pool for the day of the event. For example, you NEVER place the food or drinks near to where the door for going in and out of the house is. That's numero uno! Secondly... place your food and the beverages at opposing ends of the space. This forces them to traverse the space and thus inter-mingle with everyone at your event. And that way you don't get any traffic jams in the space that are annoying to deal with.
Another tool that helped a lot was I bought this rather large floating rectangle that up to like 5-6 adults can congregate and layout upon. People seem to like using that thing.
Ya gotta (politely) beat it into your guests heads about the no glass around the pool thing. Keep re-iterating the injury aspect of it since if the pieces fall into the pool somebody will step on it and cut themselves. They all want to be good about it, but as the night wears on and the spirits flow... they get forgetful about it sometimes. So just be prepared to remind them again.
Expect the unexpected! I sh*t you not... I had this one m*ther-f*cker (who is soo damn lucky it was a social gathering and therefore there were a lot of eyes on me, it was EXTREMELY DIFFICULT to resist the urge to pummel him to death!) ... he literally picked up my Rat Terrier... and hurled her into the pool! A stranger to me. A guest at my home. Who f**king does that!!!
Now thankfully I made sure since day one that my dogs could swim and manage to extract themselves. But this f**kin yahoo doesn't know that! I had to be very loud and stern and commanding with him... but then I felt everyones eyes on me at that point, so I had to let it go at the moment once she was extracted. So anyway, be prepared for any manner of stupid isht to pop-off.
EDIT: Also... every 3-5 years or so... you have to dump the water and refill it... because due to evaporation... the water.. think about chemistry class back in highschool... the solution of the water reaches a saturation point with the minerals... and when it does... those minerals act as a buffer to the acid you must use to balance the pH of the water. Thus.. you get to a point where you simply can no longer keep the water balanced anymore and thus... the chlorine does not stay, at functioning levels, in the pool anymore. I'm at around 15,000 gals and it's something like $300-$350 to replace all the water. What I typically do these days instead... is I will dump the water in the spa side..... which is maybe like 1/8th or 1/10th of the total capacity of the whole pool. And I'll do that repeatedly for several weekends in a row so that way you can get some new fresh "empty" water into your solution so it can take on the chemicals properly again.
EDIT2: I will say this though... I do NOT ever get tired of seeing Mama in a Bikini floating around on a lounger in the pool though, so there is that!