Wifey B: We've cruised and cruised and cruised and cruised.
We've heard warnings and warnings and warnings and warnings about transient dockage and slips.
Can't dock a CAT anywhere, but then people do all the time.
Can't find dockage on the loop over 50'. Then they change that to 60'. We were 69'4" and had no problems. I know someone who took a 72' Hatteras on the loop.
It's only a problem if you don't contact them ahead and find out, but the vast majority of areas will accommodate you well. Marinas are use to boats of all sizes and types.
Any boat you consider, someone will be giving you warnings. Perhaps 50% of the time, they'll know what they're talking about.