Hmm...
I'd say 90% of the software I had was pirated.
I'm my time on the Amiga I bought about 4 original games and 1 piece of productivity software (the ADPro scanner-driver package).
Since 1992 I've never purchased any software at all... I've been lucky enough to have corporate editions of all the key packages I need (WinXP, Win7, Office, etc) and also use 70% of freeware stuff.
Mike.