Since I opened up a new bag here - I'll elaborate on a theory I've had for some time now.
Here it is, in a nutshell:

People tip at piano bars more than anywhere else.

This means that electronic setups are a DETRIMENT to obtaining tips. The common tipper (not Gore) seems to "reward" the pianist for playing a request, but does not put the electronic player in the same category. I believe it is "assumed" that we are doing less, and that the keyboards are mostly the master.

One way around this thinking is the "fake" piano shell. I've played many places that did this, my friend at the shore carries his own, and Don Mason has seen the rewards at his newest venture. It sets the stage for a "piano bar" environment, and makes a great tip jar holder. Even if EVERYthing you play is electronic - if it has the LOOK of a piano, you'll make more money. It's a s simple as that.

People don't tip my electronic gear as much as they do a piano bar setting. Try it and see..... It's been the case 100% of the time. If there is a piano available - try to set your keyboard on top of it .... but leave room for the fishbowl !