http://www.escapistmagazine.com/news/view/117151-Diablo-III-Launch-May-Get-Messy
All the haters need to STFU!!! Blizzard knew exactly what they were getting into. They know what the hell they are dong. Give them some f'in credit. If you can't handle that, turn your copy back in and get your money back. Plain and simple. Don't buy a copy of a game then whine and moan that you can't play it the minute the online servers go live. It doesn't work that way. D3 was a WORLDWIDE SIMULTANEOUS RELEASE!!! This means in ALL the markets that Blizz operates have access to the servers. Any server that is allocated to the game is going to see hundred of thousands of users logging on at once. Server busy errors are going to happen. DEAL WITH IT!!!
This was a very highly anticipated game and they wanted enjoyment for all, instead of doing staggered releases for it. It wouldn't be fair for one country to be able to play it first, especially with a game as huge as D3.
As far as load balancing the servers, to be able to balance something, you have to find out the extremes. In the article, Blizz was calling for login delays to control the flow. If the servers crashed at launch, D3 would be DOA and Blizz would have a huge amount of egg on the face, a major quarterly loss, followed my mass layoffs.
A lot of us gamers are currently unemployed. I myself have been without a job since last Nov. On my system, I have no shortage of alternate games I can play. I'll wait a few days for them to get the kinks out. Launch day is just asking too much.
(For any of those I have offended, grow a backbone will ya!)