What I'd do with Bioshock...
Beat it.
Beat it again.
Talk for a bit about the plot.
What I'd do with Mass Effect...
Beat it.
Beat it again for alternate endings/conversations.
Do all the side quests.
What I'd do with Halo 3...
Sell it.
What I'd do with Orange Box...
Beat Half-Life 2.
Beat Half-Life 2 Episode 1.
Beat Episode 2.
Beat Portal.
Beat Episode 2 again going for the achievements + gnome, etc.
Play a bunch of Portal custom maps.
Play Team Fortress 2 a lot with friends.
Make a custom map for Team Fortress 2.
Play a single-player mod for Episode 2.
Make a Garry's Mod comic using Team Fortress 2 characters.
Beat the Portal achievement maps.
Play the Team Fortress 2 map that Valve releases in several months.
Record random video ideas from Team Fortress 2, and put them on YouTube.
=/
In my opinion, if you can do more with a game, and you still enjoy it, that makes it better.
GloatingSwine: From what I've seen, UT3 certainly has the most mod-console support of ANY game thus far. (at least on the PS3)
Beat it.
Beat it again.
Talk for a bit about the plot.
What I'd do with Mass Effect...
Beat it.
Beat it again for alternate endings/conversations.
Do all the side quests.
What I'd do with Halo 3...
Sell it.
What I'd do with Orange Box...
Beat Half-Life 2.
Beat Half-Life 2 Episode 1.
Beat Episode 2.
Beat Portal.
Beat Episode 2 again going for the achievements + gnome, etc.
Play a bunch of Portal custom maps.
Play Team Fortress 2 a lot with friends.
Make a custom map for Team Fortress 2.
Play a single-player mod for Episode 2.
Make a Garry's Mod comic using Team Fortress 2 characters.
Beat the Portal achievement maps.
Play the Team Fortress 2 map that Valve releases in several months.
Record random video ideas from Team Fortress 2, and put them on YouTube.
=/
In my opinion, if you can do more with a game, and you still enjoy it, that makes it better.
GloatingSwine: From what I've seen, UT3 certainly has the most mod-console support of ANY game thus far. (at least on the PS3)