I'm new to the forum and I love my 02 Spirit. Yes, 'purists' and gear snobs will say that it's not really an Indian, blah, blah, blah. This thing's dyno'd at 100+ hp and makes my 94 FatBoy pale in comparison. Don't get me wrong, loved the FatBoy, too.
I expect to visit the shop occasionally (and do) - the bike's 10 years old! Bottom line: Great bike to ride; people like it; says "Indian" on the registration, so as far as I'm concerned, it's an Indian.
All my buddies ride Harleys. Not one of them has ever been poopy-pants about me riding this bike.
Parts aren't an issue. And why wouldn't you want an S&S? It's tough as nails and puts out. The Indian primary cover is about twice as strong as an evo, so not every single part is an aftermarket harley piece.