Choosing Keys

[Jan Holm]

Hi there

I'm looking for some new keys. The primary
function will be midi keys. But I also want
something with build in sounds so I can just
power on the keyboard and go.

Im looking at a 400-500 Euro / 500-600 $ Range.

Planning on buying used and found these within
the range.

Roland JP8000
Korg MS2000

What other keys in that range (feature/money)
am I missing ? Right now I'm leaning to the Korg.

Thanks in advance