TiVo dropping prices

TiVo has just dropped their prices on standalone units and are offering another $50 rebate on top of that. The major stores are getting in line behind the price drop — all the big chains have followed suit. TiVo's web store and most of the chain stores we visited were out of the 60-hour model, and it seems the supply of 40- and 80-hour models isn't exactly brimming over. Could they be killing off their smaller capacity lines now that they have a 140 hour model on the way?