Throw away trailers??

Since an Airstream trailer is not likely to develop either a leaky rubber roof or delamination problems, in theory it could last forever if you have the money and the inclination to spend whatever it takes to refurbish it as necessary.

I would suspect that some (not all) non-airstream trailers with water leakage and delamination problems are simply uneconomic to repair, and thus become throw aways.

All the rest is Airstream elitism. JMHO