OEM Clutch vs Aftermarket

Gungrave

So my clutch in my 370Z is going out. I have roughly 80K miles on it and I bought it new. I hadn't driven a stick car in years before buying it (I'm used to sportbikes) so I probably beat up the clutch some.

I've been looking through the forums for any info on how much it'd cost to replace the clutch and if it'd be worth it to get an aftermarket clutch. So far I know it'll cost somewhere between $1500 - $2000 to replace the clutch with an OEM clutch. And I've read a few posts saying how some have replaced their clutch with an aftermarket one and ended up having issues with the aftermarket one.

I've also found South Bend, Stillen, JWT and ACT clutches. So my question is this, first does anyone how exactly how much the OEM clutch would be to replace as well as each aftermarket brand (installed). Would it actually be beneficial to go aftermarket since I'll be replacing it anyway? What are the differences between each brand vs OEM. And what all parts need to be replaced when you replace a clutch or do they sell actual kits that includes everything that would need to be replaced?