I think you should get one for me as well! I've got the Audigy 2 ZS, I should have invested in the Platinum at least because I'm forever reaching behind my case to plug things in. Plus, the input jacks aren't spaced far enough apart
If you're serious, invest in it - but keep in mind that the quality is only going to be as good as the rest of your equipment - you may find you've shelled out twice as much for quality you can't utilize.