yes 2500$ and up. But that would be MAC PRO niveau (And they mostly had Server Boards inside, more server than a PC, even moste Workstations came with the normal XP) and most 80% or more is sold between 800$-2000$ and there I have never seen an XP 64Bit.
Nah, saw XP64 on $2KNZD computers and laptops.
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My dad tried putting XXP64 on my sister's workstation. I thought it was a cruel and mean joke.