How does the Contributer System work?

Thanks that answers my question :)

Thank you, and also thanks for that extra bit of information.

yes, it's always the current full store price (unless the game is in a bundle, as stated above - however, getting the "bundle status" will not affect the value retroactively)

Unfortunately, yes :(

Steamgifts doesn't keep a database with prices for a game when you bought it, it just uses the current default price at all times. Its the same reason some games will suddenly jump up in price for a while if they are put in a Steam collection, like the Deus Ex DLC.

Ok, I didn't know this, thanks!!