I'm looking into getting one of these rather low-cost keyboards for open mic type events, nursing home sing-a-longs, etc. I'm aware of the fact that they just have a stereo 1/4" output. I also intend to use it to play B3 and EP now and then with a band that has asked me to do so.

Reviews that I have read for this purpose seem quite positive. There's a WK-3000 in the local Craigslist for not too much cash.

I also like that it has a pitch bend wheel - for the occasional synth lead line.

I know that it's getting a little long in the tooth, but I seem to remember positive reviews here from somebody - who was it?