List past MSRPs for games

It would be useful for posterity if all official MSRPs for games were listed and the dtate that it changed on. Say a game released for $59.99, but then after a year or so, it officially dropped to $19.99. Now, a collector's edition of a game, is a much more complicated subject as they don't have that standardized $59.99 price. It later becomes a lot of work trying to find what it was originally sold for, usually having to rely on the random review that happened to mention the price. It would be much more helpful if a single location, like Price Charting, were to collect and show that data.