People have to realize that games have to be able to support certain features of Xifi, ex. EAX and Xram, in order to fully utilize the card..... Otherwise, it's just another sound card.......
I upgraded from my Audigy 2 Value to Xifi XtremeGamer and some aspects are well worth the buy. I personally love the music playback and how it's able to simulate surround sound with two speakers, even more with headphones. The 'crystalizers' are somewhat over-rated unless you can spare a deep bass. They literally un-compress the sounds and you need equipment to utilize them. I have them off, but occasionally I turn them on with 5.1 speakers plugged in......... EAX support is really worth having and really makes the games sound a whole lot better.......