Playing with other musicians is very satisfying however it's exceedingly difficult to find those people and most of all the time to devote to this.
obviously i have been using MIDI and Backgrounds forever, and the quote above
has been true for a long long time
my first MIDI backgrounds in professional use often had 4 final cuts
one for a Vocalist
one for my Trumpet player
one for my Drummer
one for me
many many gigs were still in a band context, but many smaller
lower priced gigs began to transform to Duets, and i quickly
realized a duet with good backing trax had an advantage for
sophistication and finesse in performance. i was very lucky to
have sidemen and vocalists who were forward thinking and had
the chops and confidence to use trax
the flexibility on versions that could feature the sidemen correctly was
a direct function of working inside MIDI for performance, and the
YAMAHA portable laptop with Cakewalk, then the KORG i5 series of modules
(and floppy disks)
MIDI sequences are easy to incrementally adjustment/improve over time
(even years)
it worked for me, and works to this day
actually, substituting a Roland for one of my MIDI Excelsiors on a gig
was also seamless since i rely upon the underlying MIDI and modules so much
as valski noted: When playing in public your main goal should be to entertain people