Craig:
I don't understand you're thinking. If you love your music, LPs played on a good turntable/cartridge sound far richer and better than on CD.
In general I think you're right, but only if the LPs are decent to begin with. I may differ from others here in my thinking about this, but IMO the average, garden-variety pop/rock LP, particularly those produced in the '70s when vinyl (the actual vinyl, I mean) was almost universally crappy, are far from audiophile-quality. They may still be better than the first or second run of CDs that replaced them initially, but in my own collection they're now replaced by my own CD copies of the LPs and not by a record company's misguided "remastering." There are a few exceptional LPs here and there, especially with imports, but I'd say 90%+ of my collection has no real audiophile value. Those records that do, I'm planning to keep, as well any otherwise collectible discs.
Don't get me wrong - I'm firmly in the camp that believes the best analog setups beat the pants off the best digital setups. It's just that IMO most of the available analog software isn't up to snuff.
Are you saying they have more layers than stereo and 5.1? Would they have a 3.1 layer for example?
SACDs will usually have multiple layers, but it depends on the disc and how its makers intended to market it. Some are SACD-playable only (Sony/Columbia was the main culprit in producing these), and they may have only a 2-channel layer, or they may have a 2-channel layer and a 5.1-channel layer. Hybrids have one or more of the aforementioned SACD layers, plus a 2-channel redbook CD layer.