If you are not an early adopter or just curious, then wait a year and see how things go. Both DVD-Audio and SACD can sound very good when mastered and played back correctly. Much of the current confusion occurs because of the differences in quality of players available for each format and because of the limited quantity/quality of software.
As far as two-channel versus multichannel, most people currently listen to both formats in stereo, not in multichannel. But I have been extraordinarily impressed with the improvement in musical communication with multichannel, and I believe the future lies here, even if not the immediate future.
As far as two-channel versus multichannel, most people currently listen to both formats in stereo, not in multichannel. But I have been extraordinarily impressed with the improvement in musical communication with multichannel, and I believe the future lies here, even if not the immediate future.