Nintendo Responds to Smash Bros. Brawl Online Woes
Well this might answer your question to as why for all this hold up for the release of Super Smash Brothers Brawl.Nintendo company promised to improve Super smash bros. brawl. Despite this, it is the fastest selling game in history.The company said
"As with the launch of any online-enabled game, especially one as popular as Super smash bros. brawl , everyone wants to play at once," said Nintendo spokesperson from a email sent to Gamepro on Monday which places the pipeline on a strain
Nintendo of America has annouced the fastest selling game in history in Nintendo is Super smash bros. Brawl. Selling a whoping 1.4million copies after the reliease date, and 874,000 units alone on first day of launch.
( please note that quotes have been copyed because putting it in my own words would be wrong )
Source: http://www.pcworld.com/article/id,143551-c,games/article.html