Fusion io is about two years old, so of course it's expensive; the real problem is that they haven't refreshed it. BTW, the list price is $2,400 (including enterprisey markup) for the 80 GB ioDrive and $900 for the 80 GB ioXtreme.
No, actually the Fusion-io ioXtreme card that was tested runs for about $899 but it's still crazy more expensive. The 240GB RevoDrive X2 is $620 or so, about as expensive as a standard 256GB SSD, or even a little less.