It's nice you have a great lens that suits you shooting style, but just because you can't find a use for other lenses doesn't mean others can't. I pay the big bucks not only for the clarity when I shoot them at f8 but also the subject isolation when I shoot them at 2.8 or 1.2. I don't have to pixel peep to see the soft creamy backgrounds when I open them up.
It's just great that we have found what floats our respective boats.
Will shoot for fame...fun...food... a heck I'll shoot anytime anywhere.