This Christmas there's a few titles I'm really looking forward to on the Wii.
Mario Galaxy, the new NiGHTS game, Raving Rabbids 2, and later Smash Bros in Feb. They should all be great. I played a demo of Galaxy and it honestly surprised me and looked pretty beautiful. Right now good titles are Rabbids 1, Resident Evil 4, Zelda (of course)... Then you have backward compatibility out the wazoo, and if you never got a chance to play older titles like Link to the Past (excellent) the opportunity is there through VC. I have my PC to do multimedia, no reason to pay another $200 to play DVDs and music really. And I don't even really use my 360 to play music. Just DVDs.
I'm pretty sure someone hacked the Wii firmware and was able to play DVDs but I don't think Nintendo is too happy about it.