New Clutch

[dave240sx]

My clutch is starting to slip and I am going to need a new one.  It's a stock ka so do you all think I should just get a factory clutch put back on or do you think I should get an aftermarket clutch from somewhere.  If so do you know of any I can get for a reasonable amount of $$.  I would don't really want to spend over $300 if I don't have to, but I haven't priced up anything yet.  

So my final ?? is should I buy an aftermarket clutch or just use the one they give me.  (if that makes any since)

Thanks
-Dave-