If I ever have so much money left (first pay off the mortgage!), I'm too old and weak for such big bikes.
I probably would not have the self-confidence and the joy of riding an extra-large bike, always worried that my skills will not be enough and that I will damage something.
Don't only dream, start with the 1. step!
So I bought a small (650) motorcycle for my 50th birthday. I can not push it to its limits, but I feel comfortable with it, I'm not afraid.
In my dreams, I take the K1600 beemer...