In the world of travel trailers, higher cost has a more likely positive outcome for the purchaser in comparative featured models. This is because fit and finish cost money. But doesn't mean a 3 slide out model with fireplace is better than a cheaper non-slide model, of course more features add cost but if not high quality they add problems.
If you haven't had a fiver before you should do 2 things. 1) rent from some people and try them out. You can find out what is important to you and maybe rule out some things. For example, my friend was all over a model with a side and rear deck that folds down. 3 years later he has yet to be in a campsite he can use both at the same time. Toy haulers are useful at times but the living space can be more spartan. But my cousins have friends with one and although they have no toys, the separate spaces are key for them to be able to both work at the same time while traveling.
People think that it is a waste to rent and not put the money right on their own, but I have been doing it and already figured out that I will never own a slide out on the door side of a trailer as it usually takes away from the awning space, I will make sure the sewer handles on a eventual purchase are not way under a slide out, and a slide out in the bedroom is a must (I would never have considered that if I hadn't rented one).
Once you figure out what you want, check inventory around the states near you or even in east coast. My parents bought a fiver in Louisiana on a trip and I drove down with the truck from NY and drove their toe vehicle back. Next time they went to Florida to pick up a purchase and did some sightseeing with motels on the way and had a nice 2 week vacation.
Important thing is take your time, lots of used units out there with shoddy workmanship after the past 3-3 years of factories cranking them out. Really need to inspect the hell out a unit, make them fill it with water and run heater and pump, check for leaks. Use all slides a few times each. Open every cabinet and check for loose or replaced hinges. I recommend 50 amp, my sister's brand new unit with 30 amp can't keep up with cooling as only 1 ac at a time can be run and has to turn off ac when making breakfast.
Good luck