The price difference here is about $400 US between the two. Aside from the pickups, the only other difference is the finish. Personally, if I could afford the RGA321 I would get it because IT IS SOOOO DAMN SEXY-LOOKING!!! The RGA121 is also a great instrument that will play and pretty much sound just like the 321, but to me it doesn't have the same sex-appeal. Whether or not that's actually something that you care about will help you make the decision. Either way, you'll be getting a great instrument.