My observations, which I will try to make as politely as possible.
The problem with these sorts of lists (when applied to other collectible crap anyway, from reletively cheap stuff like records and games to the more extravagant like cars) is that they tend to help prevent prices from going down. I know that people on this forum tend to be a lot more frugal than the dipshits on eBay (who evidently will pay anything for anything) but the fact is that this forum is a reference for TG/PCE collectors and if this list project takes off people will start to refer to it more and more. Once that begins then people will refer to it as law, and always pay/charge at least as much as the list dictates...and this almost never works in the reverse (to keep prices down). See: Digital Press.
For example, comic book price guides. Some book will list for $100 and that instantly becomes what the book is "worth". All shops will use this exact price and never adjust it unless they are having a going out of business sale, even if nobody can document a single person actually purchasing a single copy of this book in the last decade. It can't be "worth" $100 if nobody is actually buying it, but they have a list from someplace to prove otherwise and they are sticking to it. The seller feels he will "be an idiot" if he charges less, and the buyer feels like a shmuck for asking less so it goes (or doesn't go) for $100. He might knock it down to $90, but he sure as hell isn't going to knock it down to $10, even though it maybe should be $10 since nobody has bought it in ten years.
In other words, this list can be a great snap shot of what's going on in the free market, but once people start referring to it it circumvents the free market. For an up to the second, totally dynamic version of this list one could just go to eBay, since that's where the prices came from anyway, right?
And eBay varies WIDELY. When I shop for a specific game and I see its, say, $50, its not uncommon at all to come back a few weeks later and see it for $15. So what's the game worth, $50 or $15? How about $32.50 since that's the average? Well, no, because nobody ever payed $32.50 for it. You end up with the "Bill Gates walks into a bar and instantly the average income in the room increases to $50 Million a year" thing going on. Some people payed $50 because they would pay anything, the other people weighed the value of the game against what they paid for other games, what their finances were, etc, and the paid $15. This is why so may middle-of-the-road value games like Star Parodia or Spriggen can very %200 from week to week. How do you reflect that in a (semi) fixed document.
So I'm not telling you to not make the list (wouldn't work anyway) I'm just mentioning that its basically like deciding to make a print version of a web page; less flexible, and more out of date that the source material so unless you don't have a computer, what's the point?
This list would be pretty good for printing out and taking to shows and such where there isn't much internet access to be had.
What I'd rather see, and what would be more valuable (to me anyway) is a list that shows the average price of what PCEFX forum goers charge/trade for games with other members. I routinely get killer deals from people around here and because of that I'm not sure what to ask/pay for games with other members since a quick check of eBay isn't representative of anything in this kind of transaction.
