Mac, hence my use of the word 'most'!
The emulations available in the Nord are very satisfying, nonetheless - with an expression capability hauntingly like the real deal. Again, fitting under an arm.
It's kind of like .mp3; I'll take the portability and convenience of 192 kpbs .mp3 files over having lossless files when I'm driving in my car. It's a great compromise, since the noise floor in my car is so high.
If I had to port around a B3 to gigs, I'd need a crew. The Nord Electro and Stage models are a great compromise and again, to most, the sound is the same.
The B3 emulations in those keyboards are very very close. Of course they are not exact, but it's much closer of an emulation than say a sampler keyboard trying the emulation of a guitar.
-Scott