How often do you hit the rev limiter?

[epapp]

I believe my engine loves to go past 6000, her and I had a heart to heart last night

I mainly hit it because:

-higher RPMs make me go faster, there is lots of power at 6400
-I normally build up the rpms slowly to 3-4000 and then nail it, and the rev limiter isnt far from the 'normal' cruising rpm of 3-4k (other cars slow my 0mph start sometimes)
-I'm accelerating in a long straight line from 0 mph
-if I didn't hit it, I would be "granny shifting, not double clutching like I should"

I think most people would say they hit 6000 at least sometimes, and how different is 6000 from 6500 in terms of extra stress/wear? Plus, isn't OVERrevving going past 6500?? I don't venture into that territory, only because my ECU wont let me