Why does everyone want to "HIDE" the lap top on stage .....
who are we trying to fool?.. Playing an Arranger KB that uses computerized Automatic style accompaniment and synthesized sounds to create the sound of a so called "real band" which is fake enough,... then, people want to hide a laptop which can be used to enhance your performance in so many ways also....the audience isn't fooled, although some players think so, ....your sitting there alone making all this music but the band members aren't there, and then people don't see them either, oh boy What a Surprise ....
So why the cloak of secrecy & incognito like thoughts? ......I say just use "all the tools" available to you "PROUDLY", that you need to make great music, and have fun doing it.
People will appreciate "your talents" all the more !
People.... come out of the closet and open your heart & soul to the masses ...you'll feel better for it for sure!!