Most of the manufacturers will have a range of units they build. That said it takes some critical looking to see if the money you're ready to spend is returning what you expect. As an example, are Corian style counter tops important to you? How about such add ins as a fireplace? will you be camping or traveling in colder climates? If so double-pane windows, heated fresh, gray and black water tanks, duel speed furnace, and an "arctic" insulation package are a must. Some higher end TT's have disc brakes and never-lube axles - planing on longer road trips?
Many of us have excepted less quality as we learned the features we wanted to focus on. Compromises are worth it if you only plan to camp 10 - 12 times over the year, or the kids are gonna be out-growing camping with the family.
In my experience, Sunny-brook was the highest quality of the 4 TT's I owned, that was some 10 years ago. The sales woman was an ex-factory designer for them, and what an education she gave us on construction and materials, space usage and cabinet design!
Good luck! The staff and members here are with ya!
johncmr