What made you not like the PX-750? What should be better?
People here can make a list of digital pianos in that price range and provide personal (possibly contradicting) opinions, but ultimately you should find the nearby music stores and try out the available digital pianos. You already play the piano and can critically assess these digital substitutes.
Is that 2000 Canadian or US dollars?
It won't buy you a hybrid piano. I guess you'd be looking at
- Yamaha Clavinovas, the CLP-7xx models
- Kawai CN and CA series (most CA models are too expensive)
- Roland HP series
Casio's "Grand Hybrid" models are too expensive but could be interesting for you try out.
And not to diss Korg their G1 would be the top model in their "home pianos".
With $US2,000 I can buy 2nd-hand NU1 in my home country. Months ago I found one on marketplace in Canada but not near my home so impossible to reach.
I actually bought 2 casio: 750 & 850, one for me and the other for my mom. The touch of the key is kind of unreal, no response felt ... or maybe it's too little to feel.
Kawai is over my budget (now it's CA$2,000 only), even CN29 the lowest.
So, I only have few choices: Roland HP 701, Casio AP 470, Ya YDP-164 or CLP-725 ($200 gap)
If you have one of them, welcome to hear your comment. I also search myself to spend my tight budget well.