I have the opportunity to acquire a set of well maintained Proac Studio 150 speakers. Price is around $800. I enjoy excellent sound quality as much as any red blooded American, but wouldn't consider myself a huge audiophile. Given that info, would you consider this a fair price and do I need something this high quality to enjoy my music (would I be able to tell the difference between these and a 5.1 set of KEF 3005?)? Thanks SF for your input.