I have both SACD (a Sony SCD-1) and DVD-A (Pioneer 38A) and both have their strenghts and weaknesses. Well recorded SACD's are very good -- in same league as the best vinyl, poor recordings or remasters are no better than Redbook and certainly inferior to any vinyl. DVD-A is quite an experience, and althought the "high endness" may not be up to SACD, I do enjoy multichannel "fun" on occassion. Same problem as with SACD though -- many of the recordings are abysmal. And with only 50 titles, the pickings are certainly slim. SACD has about 350 titles, but how much Miles Davis can anyone really take? So now I find myself peppering my "audophile" recordings with off-the-shelf Redbook.
I also agree with poster who likes XRCD -- these are quite good, and certainly more consistient in quality than the SACDs and DVD-A's. Between my SACDs, DVD-A, XRCDs and even DTS 5.1 multichannel, I'm never bored. And I can't even pick a favorite -- it's the diversity that I actually enjoy. I'll reserve further judgement on any of this until I get a the EMC-1 with 192 upsampling and the Sony 555 multichannel SACD.
Oh sh$%@t, no more room to put all this stuff -- I need to buy another rack. "Honey, the left rack balances the right rack, don't you think". Somehow, I'll have to come up with a better line. --Lorne