In fact, I've never heard anything electronic that truly "sounds just
like" a REAL Leslie speaker!

Can't be done, unless one set up an almost continuous row of speakers and
figured out how to fire them sequentially.
Much easier to use the real McCoy.

The magic of a Leslie isn't just the rise and fall of the tremolo, it's the
directional nature of sound as it reflects off of every vertical surface near
the stage. A Leslie speaker
literally immerses the audience in a nice, plump, chord. The electronic
equivalent sounds exactly like somebody *recorded* a Leslie speaker. Not the
same thing.

Until recently, keyboard players have been
plagued with staggering loads of gear.
The poor guy dragging an awkward, heavy, bulky Fender Rhodes 88, (or the crew
it takes to hoist a traditional B3) up a flight of steps from the loading zone
has to look somewhat enviously at the guys carrying
5-pound guitars.

Music is becoming so anemic. Every little electronic trick makes "live" music
sound more and more like a badly engineered recording. You almost have to
accept that in a small club without much of an audience all "drumming" will be
done by an invisible robot......but some of the current technology is getting
extreme. These "smart" microphones that make virtually anybody sound like they
can sing, (and most especially harmonize), actually erase
some of the characteristic overtones that make a good vocal talent a special
treat.