Leslie sound is great: I even prefer the sound of a 145 or 147 (tubes) over a transistor powered unit. One of my jobs is a guitar job, where I use a 147 (same as 145, but with reverb), a pre-amp and a 335 Gibson. The 147 stays at this club.
On keyboard jobs, I sometimes use a Hammond XP-2 (portable), a Fender Bassman and a Motion Sound (Old unit, tube, horn only) in addition to my arranger-an antique MS 60, soon to be replaced by an SD-1 Plus.
That's close to what I want, but not quite!
Luckily, I have one country Club job where I keep a B-3, A Suitcase Rhodes and a 145.
Great where it is, but it'll NEVER MOVE!
I agree...it's all in the doppler effect...those horns have to move!
Russ