I guess it depends what you want to do whilst on holiday.
I find places like Dartmouth are really bad to be ribbing during regatta - no where to tie up, everywhere crowded - best time to escape to more open areas!
If you enjoy the buzz - which is great - I wouldn't bother with the rib - take the sib to pootle down to Portlemouth / South Sands etc..... if I had a 6.5m I'd want to be out of Salcombe and elsewhere there's room to have fun.
Just my opinion.