I was able to snag both Parts of Aniplex of America's Box sets for Fate/Stay Night Unlimited Blade Works this past week from eBay, for slightly less than the $180 each they originally sold for new. I had waited just a little too long to get the AoA copies at Rightstuf while they were in stock, and then Part 1 went OOP. Ever since Aniplex announced the complete box set for UBW, I had been hoping some people would rather pick up that set and sell off their original Parts boxes. I was also able to use my $25 for $25 ebay coupon on one of the sales, so I got Part 1 for only $150. Part 1 is like new but is missing the outer bag, and Part 2 is new never opened. Both do have their obi intact. I'll just need to make myself a snug-fitting plastic bag for Part 1, using the heat sealer I have for just that purpose.
I now have all eight original Aniplex box sets of Fate/Zero and UBW, both in the Japanese and AoA releases, and also the two UK box sets of UBW which I had bought as a substitute for the missing AoA sets. Once I receive the AoA UBW sets and check them out to verify they are OK, I can sell off the redundant UK UBW sets, which are both still unopened.