Eventually you know the pre-trip and/or pre-season check list of things to check. That pretty much includes anything that screws in or tightens (think hinges, latches, and clamps. Oh My!) Along with seals and gaskets.
Along with the "who'd of thunk" things that can work loose, stick or otherwise surprise you with an opportunity to learn more about how your camper works. :-) The one that always gets me is when I relate some problem I have had to overcome only to hear from multiple other RV owners that "oh if you just use some blah" or "once a season do blah" it won't do that. Sigh. Wisdom can be such a PITA to earn.
I think keeping weight
down is as much a factor as cost. Lighter and smaller tends to be a bit more fussy than heavier and stronger. And light weight
is influenced by price point too. Light
and extra strong tends to be expensive. High grade aluminum or other alloy, carbon fiber etc. cost a lot more than run of the mill materials. Check out the price of a carbon fiber bike frame. Really light
You may want to locate some Purple Locktight thread locker, the purple locks bolt threads but is designed for smaller fasteners, you can't get enough torque on a small bolt or machine screw to undo the small fastener if you use the more common blue (for 1/4 inch or larger), or the high temp red. Check auto parts stores. Stuff really helps with those screws and bolts that want to work loose. Only takes a tiny drop.
Enjoy your trip and the memories.