My Rewards vs. Experience post got several comments, one of which was essentially "everything you get in a game is transient because you can't take it with you when you quit." This prompted a friend of mine to write me an e-mail and pose the question "what if you could take it with you?"
That's a good question. Right now, as far as I know, there are no MMOs where success in one game will give you any sort of advantage in another game, even a sequel by the same company. You don't get any advantages in EQ2 for having a full set of raid gear in EQ (which in many ways might account for the relative failure of EQ2 compared to EQ, but that's another post entirely). MMO companies have shied away from giving rewards in new games based on gear collected in previous games. They almost did it in EQ2 with the heritage items, but changed course and made them quests available to all instead. It seems reasonable, since allowing rewards to carry over gives an unfair advantage in the new game to those that played the old game compared to those who never played the old game.
Except Guild Wars is doing just that for Guild Wars 2 with the Hall of Monuments. While Guild Wars isn't a gear based game and so there's no real gear to transfer over, your new characters in Guild Wars 2 can earn a variety of rewards (including gear) by completing certain goals in Guild Wars. A Guild Wars completionist will have a host of rewards waiting for them if they make a Guild Wars 2 character, and it's hard to argue they won't have an advantage over someone who never played Guild Wars since many of the rewards are items.
Regardless of whether it's a good idea or not, it has to be noted that in essence you can "take it with you" to Guild Wars 2, and the release of the Guild Wars Hall of Monuments resulted in a flurry of increased activity in Guild Wars. People have been hitting the game like never before, trying to fill up their Hall of Monuments before Guild Wars 2 releases. It's also strange to think of the meta-gaming involved here, it seems entirely possible that people will be playing GW after the Guild Wars 2 release in order to earn rewards in GW2.
One has to wonder at the (rather horrific) monetary possibilities behind this sort of thing. Imagine if EQ2 players COULD get rewards by playing EQ, and suddenly you had people playing both games, and raiding in EQ to equip their EQ2 characters. Somehow I won't be terribly surprised if Blizzard (the kings of squeezing money from customers) create some sort of link between WoW and Titan, even if it's nothing more than titles or pets or vanity mounts. Imagine if each expansion of WoW had new bonuses that could be earned for Titan.