At one time last year our local Best Buy store carried one model Tablet PC. It was featured prominently on the end of an aisle and then moved to the back corner by the cheap laptops and then ... [gasp] it disappeared. This was the last time I saw a Tablet PC -- any tablet pc -- in a retail store.
Today while shopping at Best Buy (Puyallup, WA) I was delighted to see featured at the end of the aisle the Toshiba (R15-S822) Tablet PC. The price: $1,599 USD. It wasn't in as prominent a location as it was a year or so ago, but it was still in a fairly prominent location slotted near the computer area help desk.
I also noticed they were selling the Apple Mac Mini.