Hmmm, you know my other half is an RD enthusiast as we've discussed before........without even asking his opinion I will tell you the answer to your question
yes the RD 500 was a bit of an animal, well it was when it was your first big bike was one...and it spat you off and ate you for breakfast!! I'm sure Im Indoors would approve of you getting an RG500, just keep it quiet, it might get him wanting one too!!!