I can understand that (keeps financial outlay predictable), but in most cases, workstations and servers will out-last their warranties, and by a fair margin of time. The systems usually become incapable of the intended task before they die.I really don't like keeping machines past their warranty period. We will see thoughI just added a GT120 and a couple more monitors. Finally went Snow Leopard on it as well (I hold back on my production machines).
Unfortunately, there doesn't yet appear to be Mac drivers for any of the existing cards so far.USB 3.0 is a possibly. I am waiting for drivers to start popping up. That is the only thing holding me back from buying a card.