that is going on the us doller,if you look on smart parts europe the nd shocker is still going for over £600.and i think i have the only one on here,well, you are trying to sell a ND shocker which im sure you paid £500-700 pounds for dependin on the Xchange rate, SP has far too many PL version of there guns, some they own the rights to, some they dont, and the ones they do have just dropped in price from $1000-$1200 to $800. Therefor your gun is now worth £400 new. I was trying to sell my NXT which hasnt dropped in price, and mine is only £50 less new than a PL Shocker. So all those sites that sell shockers will soon be lowering the price and srewing over all the people who paid a lot more money only a short while ago. I would say the max you could get for you gun is around the £375 mark, whereas i would probably get the same for a stock NXT with a qlock. It depends how much you want to lose and how much you want to sell the gun. Remember some guns lose 30% of there value straight away, EGo7's going for £500 is sign, though this could be in prempt of the new releases of the guns in october at world cup.
so its not like the second hand market has been flooded by them.