It's gotta work for what I got it for and better if there is a multiple-use for it.
I've gotta be comfortable with it, either sleeping in it, wearing it, or using it.
If it weighs too much it stays with the car camping gear but I'll trade weight for comfort.
Durability is relative to weight and price.
Dang, I gotta pay for it but it's better to buy the right thing once and pay a higher price than a bunch of lower priced items not quite what I really want several times that cummulatively is higher than the right thing once. Reading back that confuses me but I know what I mean.