The Old School Rule was a fist of seatpost. The idea was to get as big a frame as you could. I'd just bet you have about a fist.

I have short legs, and on most of my bikes, I haven't been able to stand flatfooted.

I got used to it.

Like the other guy said... if it ain't broke, don't fix it.

Btw, you were in a bike shop talking to bike salesmen whose job it is to sell..... you'll never guess this one.....wait for it...