MLBAM IPO Worth $5 Billion?

It was reported last month about some of the revenues being generated out of Major League Baseball Advanced Media (MLBAM), and that it paid back the roughly $80 million investment used to fund its start in 2000--nearly $3 million per team. Now, a USAT story has some more details, though has a slightly different number on 2007 expected revenues: at least $380 million this year. MLBAM has considered an IPO a few times before, and when team owners considered taking it public two years ago, offering estimates by investment bankers ranged around $2 billion-$2.5 billion. Now that number approaches $5 billion, the story says.
http://www.paidcontent.org/entry/419-if-it-did-it-mlbams-ipo-valued-at-5-billion/

http://www.usatoday.com/sports/baseball/2007-12-04-baseball-online_N.htm