[earlz]

Heh, I'd say tube amps are a bit more out there than everything else you listed (unless you mean tube headphone amps or something). It's INCREDIBLY difficult to accurately emulate tubes on normal computers in real-time due to their non-linear behavior. And there is at least some kind of science behind tubes "sounding better" since second-order harmonics are suppose to be more enjoyable for a listener, and are generated naturally by a single-ended tube amp design. I wouldn't say musicians using tube amps are trying to elicit memories of the past, rather that's just the best way they can make their instrument sound good

[wreckimnaked]

Sure, on a normal computer that may be the case. But, products like the Kemper Profiling Amp (https://www.youtube.com/watch?v=h0SmSl1aS1w) are on the same price range as high-end amps and have been able able to model _any_ amp with an incredible precision for years already. Still, it's easier to find a wide selection of analog amps in recording studios than one of those. That said, I think it has a lot to do with the guitar player "fetish" of recording on a boutique valve head with a pair of 4x12 cabinets.