More times than not, I see people buy campers, thinking they will use them every weekend during the summer. Then reality sets in that its still work to get them loaded, hooked up, pull them places, spend a couple nights, then hook up, pull them home, unload them and do it all again in 5 days. So they just sit and get used a couple times a year.
Then you add that things go wrong with them, they require maintenance and paying someone to do it all generally isnt that cheap.
Then make sure that you have everything you need to make it feasible. Another trap that people get caught in is buying a camper, then "having" to buy a bigger pickup to pull said camper. Then there is all the stuff to make a camper amenities work...hauling water, generators, trips to the dump station, etc.
My advice, truly sit down and see if you will use it enough to actually make it worth the cost. Many times, I think people would be much further ahead finding a cabin on AirBnB a couple times a year. But if you are actually going to use it, they can be great.