I think the quality releases will, as rabbitt said, be coming until around 1st Quarter 2006. Maybe, if we're lucky, they'll last until 2nd Quarter. I think it depends, though. That and it's hard to see what's coming down the pipe. Personally, I can't wait for Xyanide to come out, along with a few other titles, and I simply can't wait until most XBox games drop in price to make room for more stock. There are around a dozen different titles I'd love to grab but even these Buy 2, Get 1 Free sales aren't really doing it for me at the moment.
Personally, I'm hoping for a "End Life" boom with budget titles. You know, where several companies feel that it's a good idea to flood a diminishing market with plenty of original budget games, quirky ports, and random things. I originally passed up most of them on the PS1 but over the past year I think I picked up a good lot of 15 of those titles for around $30 in total and they were all at least really good, if not totally worth $3, $4 (b/c, of course).