well, well
I hope the first thing you are going to throw in lack is the quality of Roland keys. The second one you will miss will be the quality of Roland piano voice. The third one, morphing. The fourth, the flexibility, musicality and richness of roland styles. The fifth one, the quality of construction of Roland. The sixth...
But don't worry, you will gain a greeeeat screen, a lot of colors, a lot of buttons, you will may to sing and become a great singer, ahahah

Everything is joke, of course.
Congratulations, Rolandfan (no longer roland-fan)