I have both the 1500 and the 3000 in my store and have compared the 1500 to the 2100 before I sold my last 2100.
The 1500 has 96 notes of polyphony compared to 64 notes on the 2100.

If you like organs, the 1500 has a better virtual draw bar organ over the 2100. It has 9 drawbars compared to 8 on the 2100.

The sounds are almost identical on the two instruments. It was very hard for me to hear any difference.

The smart media card means you don't have to keep changing floppy disks so often because you can put a 128 or 256 MB card in the slot which can hold hundreds of songs and styles of your choosing.

If you buy a new 1500 you get a factory warranty and by now you probably can't find a new 2100 anywhere.

George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566