7 or 8 years ago I played at a Double Tree Inn[hotel]....They had a nice grand piano..Many great piano players worked there...and pay was $100 a night no matter who you were..
You really had to work hard to earn tips to make it worth while.
Though they pretty much wanted an acoustic performance, I used a electronic keyboard ,along with the piano, for bass and accent sounds..some drums...You had to use a sound system for vocals anyway, so a little electronics was not a big deal..
Most of the guys and gals playing there were strictly piano players...They did sound great, but 3 or 4 hours of just piano does get a little tiresome to listen to.....
I would find it insane to not have electronic goodies for a year....