Yea I noticed that today as well as I tried to find a place where someone could find them (no Gamestops haha) for Wii Fit Plus. We also haven't had a shipment since the holidays and I don't see any future of getting them til another month. But yea closest store to us that has it is 700 miles away and then the next is 1800... that's insane.
But yea Wiis, PS3s, Wii Remotes, and Mario Kart Wii have just been difficult to fine. Although, we are finally starting to get some more Mario Karts in but they sell out instantly. At least regular shipments though. Wii Remotes, NONE SINCE NOVEMBER. That's really the strange thing, and maybe a sign that Nintendo is no longer selling them standalone, just in Wii Play or with motionplus because have gotten plenty of them.
As for Wiis and PS3s, well we usually get a shipment every couple of weeks, but literally hours to sell out, especially Wiis. Takes a little longer for the PS3s due to the 250gb. I expect that to pick back up in late March.
But I think what is happening, is Nintendo UNLOADED this holiday season, and aside from NSMB Wii which they have finally been able to meet demand, they may have been taken back by actually how popular these items were going to be in the holiday season. Same with Sony on the PS3's.