So, to address the "never switching" crowd first: That's a perfectly OK answer, too.
The wife and I were talking a few days after Black Friday, as I've had Blu-Ray on my radar for more than a year, and I finally (to her relief) came up with that point at which I couldn't resist the new format any longer: a burner, a stand-alone player and 50 discs for $400 total. I roughly assume this will happen at $200 for the burner, $100 for the player and $100 for 50 discs.
I base this on the point at which I got a DVD burner in 2003.
I'm curious if anyone else has come up with a point at which to take the plunge, and if so, what that price point is. (Hopefully, this will convince the wife I'm perfectly sane)