Car covers don't last

I guess I am luck then. I bought a $40 cover from Advance Auto about 10 years ago, and it is still fine. I only us it in the garage for dust, but I'm still happy with it.

Same here, have a gray one that came with the car a decade ago, holding up great. And bought one at Oriellys for the other car about 7 years ago, still looks brand new. But only used indoors, not in the sun.