No need to ridiculize the wish for weighted keys. Some combine typical arranger playing with styles and pure piano playing and would like to do both with the same instrument. One question is whether musicians who are used to a real piano can get used to light keybeds - I can get along well with light keybeds. But the other question is whether you can really control the velocity of each tone you play. Can you play certain tones in mf and others in between in p to pronounce a melody line with the keybed? Required for real piano playing. The MoXF 6 can handle that with its light keybed if you're used to it, the Korg Krome is problematic as the black keys react differently from the white keys. I haven't tried the PSR series in this respect - but as I said, without any value judgment: some need it, some don't.