No apologies necessary, it's an observation, no right or wrong answer with this from seeing prices being sold publicly and it doesn't apply to every type of game, but a premium by the time it's delivered is near £12k, they tend sell for around £9k sometimes a little more. If you keep it for around 2 years price can drop to under £9k. Guns and roses being a good example. There the odd game thats sold in the £10k mark. People try and sell pros for £7.5k they don't seem to sell. I suspect they go for around the £7 mark or slightly below.
If the game was not a big seller aka stranger things first run, Ghostbusters prices seem to hold fairly high.
It's always a supply and demand thing, Godzilla there so many of them for a long time it will never be worth a lot. Still worth money as it's quality. I can see bond in the future being worth more than others as people don't see to buy it.
If I bought a new in the box I would expect to loose at least £3k, unless I got incredibly lucky and got a game that didn't sell and became rare, aka pirates Jersey jack. But I very much doubt harry potter will fall into that.
Thanks for coming back to me. And i agree; no right or wrong

I guess time will tell with recent releases, but I'm not sure if applying a blanket percentage or amount (aside ofcourse from saying something like "you lose a grand or something upon unboxing") is the best way to go about pricing (say if somone asks in the "how.much is this worth", as there are so many factors and yiu are spot on when you mention something like Godzilla, where something many went out and bought NIB. Brilliant game and even though a fair few have sold on here; when they do come up, people (from what I've observed) snap them up quick.
I do thing JJP g'n'r isn't a great example on price reduction though, as generally speaking, it's not a very highly regarded game (I overpaid maybe for the one i had; amazing light show, but gameplay wasn't enough for me in a 1 game collection)
Even when there are recent sold prices to compare to, it doesn't necessarily mean that's what the latest seller is going to let their game go for (or likewise, just because person A paid £X that month for let's say a Tron LE , it doesn't mean person B will be willing to pay that much) .
If a particular game holds a special place in someone's heart for one person, they are more likely to be up for paying more (especially if only one of that game for sale) or will value decent mods or upgrades, compared to others with say huge collections who are less precious about it all , prepared to wait, and o.k to just take a punt (if the price is a steal/desperate seller) on a game before trading with one of their pinball buddies or whatever.
I know I've probably just rambled on there and stated the obvious..... sorry!
