I'm undecided. I definitely will buy the game it's just that most of the friends I'd play with are in the US and Canada while my brother and local friends are likely to buy the latin american version in spanish.
I want to buy the NA version, I had no problem with Lag while in the beta but now that the gates have been opened and the flood of players starts pouring in, it'd be really frustrating if I'd get lag on every multiplayer game I start. Also, I like hearing the voice work in english instead of poorly or too literally translated spanish.
Is there an easy way to figure out if I'll get any lag? I don't play WOW, so I can't use that as reference and Blizzard has made it a point that out of region players might get poor performance.
I'm on a 1 meg adsl connection and will be buying the digital version.