I have seen used 09 SRTs going for about 30K on cars.com. Are these usually high mileage cars or what? Are there any major difference between the 2009 and 2010 SRTs? I was planning on someday getting an RT b/c I thought an SRT was way out of my price range, but if I can find a used SRT for that price, why not get the SRT? Thoughts?