Campers/RVs are not built to the same manufacturing standards as, say, passenger vehicles.
They are manufactured in the sense that there is mostly manual labor involved.
The resulting quality can vary greatly - by manufacturer, but also within a production run.
Have a close look at the camper candidates. Are there experienced RV owners in your area that you could take along?
You will run into the discussions wood frame vs. aluminum frame vs. fiberglass molded etc.
All have advantages and disadvantages in one way or another.
Classic wood construction is easy to repair, but also more prone to water damage. But there is plenty of wood in almost all campers, just less for structural purposes.
Travelite campers do have some reputation, but there are also happy owners out there who do not experience major issues. Same with Palomino, another brand at the lower end of the price range. I hear they have focused more on quality recently.
I am very happy with my (wood framed) Northstar camper.
But really you need to look at the layout and features of the camper as well. And then, I guess availability plays its role - of the camper and the money to pay for it.
If you consider buying a camper with existing damage on the cheap to fix yourself: It is always much worse than it initially looks, and takes much more time to complete. Ask yourself if you want to fix a camper or travel in it.
And then there is the truck camper university sticky thread with a lot of useful reading material if you want to see a list of all the things that can break and need fixing...