Hey Keys4Christ!
I've used the Roland, Behringer, and the Peavey Keyboard amps, and they all sound good to me. As you noticed, the Roland seems to be the most popular, however, they cost a lot more than the others. If you can get a used one in the price range that you're looking at, that would be excellent.
I played for many years on a used Peavey KB100 that sounded great to me. Hope all the information that we've shared has helped you. BroAllan