Aluminum vs Fiberglass

I disagree that delamination isn't a problem anymore. All it takes is a slight error in the resin mix, or some sort of contaminant on the core material to cause adhesion failure. I read a brochure recently that talked about how the manufacture only uses "skilled craftsman"' but you know it's bunch of guys out there making $12/$14 an hour, cranking those things out as fast as possible. Or what about the young Amish kids building those things up north with what amounts to be ZERO monetary compensation? All I'm saying is that imperfections still exist.

Why can't RV manufacturers give lifetime warranties on their fiberglass composite work? Boat builders do it all the time...