I must say that the Roland Experience II board is also very good for a variety of reasons. However, it has an Organ sample from the 60 and 70s board. This one sample is so good that i haven't really even aspired to save up to get the 60s and 70s board.
The sample has a particular bite and crunch that has fooled every musician that I've played it for. Believe it or not, the ip-Hop board also has a good organ sample that has an added record noise sample that makes it sound so good.
My Roland SC880 has a large collection of organs. They sound MORE THAN GOOD with the rotary effect. If you ever get a chance to try out this module, try out all of the organs with the Rotary effect on.
The Infamous EPU.