Nothing boosts publicity like a little controversy! :-D
Anyway, there's really no difference between a desktop and workstation, these days. Even desktop computers are getting built-in RAID, and some come with registered memory. The only thing that really seperates a server from a desktop is redundancy, like redundant power and storage. There's plenty of dual-processor hardware out there that's used for workstation work, and there's no reason it can't be used as a desktop.
Besides, for $3000 (without monitor, or anything else, for that matter), it sure does place in the workstation category. ;-)