IIRC, a year+ ago, Creative changed their naming scheme for the "Creative Labs Sound Blaster X-Fi Extreme Audio." It's actually not an X-Fi sound card and is of older generation chipset.
I don't feel the Crystalizer is a scam. For some of my older lower bitrate music collection, I think it adds a nice tough to them. But it also depends on the song/style of music. Sometimes it makes it sound like bellybutton giving it too much bass or messed with the mid-range. Though, I didn't buy the card for this feature.