John, and cost....of course you were getting a nice wood cabinet!
They don't relate to arrangers because most bands don't use them...its a piano player at the keyboard, AND most of the time the guitars and drums drown them out (there are , of course exceptions, not many). I live in a 55+ community, we have a nice 1,000 seat theatre here and music entertainment at least twice a month. The groups that come here are mostly tribute bands and are OUTSTANDING...Out of all the bands I hear, the only time you really hear the kbd player is on occasional solos and , of course some on a few songs. Sometimes all night I never hear the kbd player. He's down in the mix somewhere. But a lot of times he is the band leader or music director.
The kbd players are not featured enough IMHO, and that is one reason people don't even know the value they add. They DO understand piano and that's what they hear and see on stage.
Tonight we go see a band called 'Brooklyn Bridge' and they are superb. It will be a treat and tickets were only $26 each.
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Lee S.