I'm sorry maybe its me but I've always felt that there was a word for a person who continuously posts annoying message after annoying message asking other people to help him make lots of money.
So let me see if I get this straight.
If there is no so such exisiting list, asking for a complete list of games of a given system is ok.
So is calling out the troops to put together a rarity list.
And a list of planned but unreleased titles.
And a list of known existing protos.
How about a list of games that are 4 players.
or a list of games that were re-released as player choice and g-hits.
There was even a request for a list of games that have monkeys in them.
But prices? Nope. That you can't ask for. You can't have help to complile a list of those. For that, you must do the work yourself.
You say HE is the greedy one. I say its those who would rather not see this information shared. If everyone has the same information it would be a level playing field. Whats the problem? Are you afraid he will go on a road trip to visit every gamestop in the US and buy each and every good $5 snes title?