I have somewhat less faith in Blu-ray than Gonk, although we agree in most other respects. (Still, for my film-viewing preferences, I disagree that the Blu-ray catalog is more robust.There are still more movies I'm interested in on HD DVD; but, then, I'm not the "Talladega Nights" demographic that IMO a lot of the Blu-ray catalog targets).
However, like Gonk, I do have the conviction that Blu-ray is definitely a bad bet for at least the next 60 days. Blu-ray will implement a new hardware profile at the end of October that will render current players obsolete for advanced special features (though all players will continue to play the film, itself).
So, as the Blu-ray software becomes more sophisticated, the past 12 months of player will not play those features. (As Gonk observes, the PS3 is a more likely bet because Sony can probably update the firmware to support the new hardware profile features.)
While I own an HD DVD player (and have had one for about a year), I'm not against acquiring Blu-ray, but the "moving target" aspect of the platform and its unsettled standards have kept me away.
For me, the undeniable truth here is that hi-def discs represent a stunning improvement in home audio and video quality, particularly if you're watching a large format display, and I sincerely hope that one of these formats gains favor with the mass market.
To hedge my bets financially, I've purchased an HD DVD player, reduced my disc purchases, and subscribed to NetFlix to keep up with the latest releases. So, I'm enjoying superb quality hi-def at home NOW with a relatively modest investment (because the cost of the player -- HD DVD or Blu-ray -- is nothing compared to the ultimate cost of building a software collection).