Go Valve! And Turtle Rock, apparently.
Seriously, though, why do you need a boxed version? Then you have to pay taxes. Valve's not going to steal your money...and there's a lot of good games you can download.
LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )