I'd have to disagree with what you say here for beginners. Regardless of size, I think 80 pounds is way too high for any beginner to start with. Just because you *can* pull heavy poundage, doesn't mean you should. You need to develop specific back and shoulder muscles necessary to properly pull, and if their form isn't already perfect, people will develop bad habits and technique. The human component of archery is way more flawed than anything on the market.
I also disagree that budget line bows are garbage. Budget bows today are lightyears ahead of top of the line bows from 15 years ago. Technology has trickled down to make them good. I started with a diamond infinite edge pro, swapped the rest with a whisker biscuit and 5 pin IQ sights, g5 quiver, and kept everything else stock, including the short stab, I bought very nice release, high quality arrows tuned to the bow, then learned how to shoot it starting at 45#, incrementally bumping up to 65# over a few months. I shot and practiced consistently over 3 years and hunted with it, and took advice from the guys at my pro shop on how to shoot. It never failed to kill anything I shot because it was a bad bow. It's extreme tune-ability allowed me to figure out my draw length, what weight I can shoot most consistently at, what I did and did not like, and much more. I consistently shoot x's and 9 ring at 20 yards, and I'm confident shooting at big game out to 50. Do I think it's the best bow in the world? Nope, but I kept it because I like it so much I detuned the weight for beginners and use it as a back up. A poorly tuned budget bow is complete garbage. A poorly tuned top of the line bow isn't much better. A bad archer wouldn't tell the difference.
In hindsight, I'm glad I went the route that I did. I've upgraded my bow and components since, but not until I learned how to squeeze out the potential from my rig and learn good form. My opinion about what I thought I would like changed a lot over 3 years, and actually carrying it in field for weeks straight taught me a lot about hunting with a bow. I saved a lot of time and money shooting as is and not upgrading all the time. I'm positive I learned faster not changing my set up.
I would advise any beginner to buy a bow with high adjustability and tuneability first, then add some basic quality components, buy cheapish arrows to lose/break while you learn, high quality arrows once you do learn, tune the bow, and practice a ton.