Is their price premiums on moddable slim PS3s in the UK? Bought in 2011,and used as a media player for a NAS box in my mum's room I want to sell on eBay Minverchk 3.40. CECH-2503B now on 4.86. Was 320gb but now 500gb. . Disc drive hardly used. What do you think it's worth, or should I expect common prices? Thanks!