If your instrument was acoustic piano, I can see having the 88 key jones, but for many of us, the extra weight, slower response, and larger size/weight just make it more of a chore than a blessing. I'd rather play a Rhodes than a piano ... but that's just me.
Since i only play for my own amusment at home, the extra weight does not bother me, time has changed me from an organ player into a piano player...
On average is real life permits me, i play two hours a day, one hour piano and another hour of arranger... its easier to play arranger with 88 keys, then piano on a synth keybed... i also love a good Rhodes sound, my Kronos delivers on that.. i dont know how a real Rhodes played, never got my fingers on one... however, its on my to do list...