There’s plenty of both aluminum and wood frames that break or have broken. I don’t think that’s a good part of the decision either.
I think it’s likely a clamshell design would hold up better which is fine as long you don’t want a slide. On the plus side, they are usually really well insulated.
Other than that, slow down and have good shocks and good suspension. My 14 year old camper is still going strong even with slides. There are many on here that have older models of other brands that have done well also.
