Hi, I'm going to put my old 3gs 32gb old bootrom on Ebay, it's in very good nick with just a bit of usage marks on the rear. I prefer to list buy It Now opposed to auctions, but I'm finding it hard to judge the price. I know the value of the 3GS has fallen in recent times, but I'm wondering if the old bootrom models still attract a premium?

I'm in the UK, anyone got any guide prices?