how long can you wait? umm...correct me if i'm wrong (which i probably am, but...), isn't X-fi coming out soon? if you can wait it out, you can benefit from 1) price drops within weeks or even days, and 2) X-fi products if you're willing to pay for them. from what THG is saying about X-fi, it might be a worthwhile wait.
then again, i still don't really know when it's coming out...i dont trust that damn timer on the Sound Blaster site.
and to answer your question...that's a pretty good price for a ZS. in stores, it's still runs about $100, $80 if on sale.