All I can hope for is A) Blu-Ray drives don't break at the drop of a hat like most everything else associated with Sony, and B) that BD gets a big enough foothold before downloadable content kills off physical media. Because I have about 30 DVDs worth of stuff I need backed up, so I'd like to have easy access to BD discs and burners for the forseeable future.
Oh, and movies, too, I suppose. Y'know, if I win the lottery, decide I want a marginal increase in resolution in my movies, and buy a 48" or larger HDTV so I'd actually be able to notice the difference.
(A TV with poorer resolution than my 19" CRT. The Photoshop monkey in me cringes at the notion.)