I used to play the acoustic piano back 10 years ago when I was in my home country, China. Now I am studying in the US.
Over the summer I bought CASIO PX160 at home and was amazed at how much digital piano has been advancing over these years. At first, I am only playing popular music songs for entertainment so CASIO PX160 seems to be good enough for me. However, as I am playing Croatian Rhapsody and River flows in you, I find the touches of the keyboard unsatisfactory. I sometimes feel the keyboard get "sticky" and I have to press really hard to make the sounds of the node very clear. I do wish to play more classic music in the future so I want an upgrade for my piano. I have done some researches online, it seems I should choose between CASIO, Roland, Yamaha and Kawai but I don't know which brand is best in terms of mimicking the performance experience of a true acoustic piano. Also, some series seem to have too many redundant functions that I really don't need.
So my requirement is as follow: feel and sounds like an acoustic piano (upright piano would be fine, I don't have enough room space for a grand piano)>>MIDI connectivity > Bluetooth connection. I am setting the budget at $2000 but if some series with higher price has series upgrade in terms of its feeling I am also willing to take that option into consideration.