Though I agree with Travelin'Easy that it's the performance that should count most, I have to admit that most of my private affair hi society type clients, image is probably just as important as the performance, so taking the PSR2000 is a definite NO NO. These people often have an expensive grand piano typically for looks as they usually can't play it themselves) so in these instances, I'll utilize the grand piano during the dinner hour, reserving the arranger keyboard for cocktails & after dinner entertainment.

As far as sound quality goes, even at very low background volume levels, 4.72" built into keyboard type speakers alone DO NOT cut it in my book. An even slightly larger dedicated PA speaker (or augmenting the built in speaker kb with a sub woofer) produces a 'smoother' more realistic (natural) sound with far greater accuracy & detail. Interestingly, it's these small venues playing exposed (bass/drums/piano) style music where I find augmenting with a dedicated PA speaker or sub woofer essential.

btw: I always stipulate in my contract that the acoustic piano must be in tune & regulated, and with (no broken or missing keys/strings). I'm always amazed how so many pianos that look beautiful, actually sound awful as a lot of rich people primarily purchase pianos as 'status image' display furniture only and don't (can't) play themselves.

Scott