I'm sure there more of value stored somewhere in the bully of Yahoo than just Finance, IM and email. I think there is money to be made like you suggest, but that's not the kind of company that Yahoo indicates that they want to be, sadly.

Yahoo will run it self into the ground trying to revive the glory days of Yahoo being the front page of Internet for millions of people. Management will not settle for a smaller service company, for a few niche markets.