What's the best digital piano in $700 price range?

I took piano lessons for a few years as a kid and am picking it up again as an adult. I bought a casio WK200 keyboard as a test to see if I enjoy playing. I am ready to upgrade. I don't need extra voices. I just want the best sound, weighted keys and sturdy stand in that price range. I looked at Korg 170 and 250 and yamaha p95. Thanks!