Seeing any card for Macs is fairly nice... and given the miniscule market, I kind of get the higher price. (Remember, these aren't just updates "for macs," but specifically for the Mac Pro - the only one you can actually get into and change hardware on.)
Of course, the Mac Pro itself needs an update...
I know Apple wants to keep the product lines simple, and that works for most of their customers, but I do rather miss being able to get into the machines (through the "beige" G3s and the like) and add/remove/change hardware easily. (First toolless cases I dealt with? 68k Macs... had me wondering why PCs weren't doing it back then! Still like the Q700.)