What? Shieet.. Expensive.. What are you gonna do with the other two copies?
I am simply going to play on PS3, PC, and Xbox360- all three. I will find out which one is most fun for me-based on controls, processing power, and groups I can play regularly with based on my schedule- and then play mostly on the one that works best for me. Also, I really wanted to support the developers, because I really like most of what they are suggesting for this game. (but not the idea of weapons being unlocked through challenges- it should be possible to unlock weapons slow and steady, such as through xp, but challenges are strictly pass/fail.)
Moreover, it isn't really expensive if you stop and consider how long Brink is taking to be released. It has been delayed a large amount of time by now, roughly a year. This extra time has allowed me to pre order extra copies. And I have no interest in selling my other copies. I want to be able to play Brink on any system I want, whenever I feel like it.
Edit: Simply Put: I would rather give a lot of money to developers who are doing a very good job, and making my dream game a reality, then give money to a lot of developers who are screwing up many aspects of their game design. I want Splash Damage to make a lot of money, so I am giving them a lot of money. Also, I am not really bothered by the delay in release date, since I am far more concerned with quality than convenience.