Boy, I am so glad that I posted this on here, I never would have known about the repairability issues with the RSX's and the Soras. I'm still going to take a look at it but I will definitely ask about the age of those Soras.
I was planning to use this as a commuter (I live just a little over a mile from downtown Nashville) and maybe for some recreational riding as well. But I'm in no hurry to get something, so I can take my time and be careful about what I purchase. However, I do love a good deal when I stumble upon one.
Thanks again for all of the advice and information!