I have the 60s and 70s board. There are a lot of choices on this card to be sure, as Uncle Dave mentioned, but I found I only use a couple of the Rhodes and Wurli sounds regularly. I edited some of the sounds to my liking. I made one rhodes and 2 wurlies, using the wave forms from the expansion board of course. I end up using my patches I've created from the board more than the factory sounds that come on it. So, if you get that expansion board, you'll probably find what you need, or will have a bunch of good quality waves to create what you need. It just depends how picky you are. Sometimes I get the feeling Roland throws 255 patches on a board when they could put on 155. So many sounds are so close to being alike. I wish they would make a few less patches and use up the memory in slightly better waves.