3 Reasons It May Be Time to Sell Your BusinessAn inside look at the decision to move on.

The phone rings. It's Sergey from Google, Marissa from Yahoo or Tim from Apple saying, "I'd like to buy your business … is a zillion dollars enough?" And just like that: The decade of workaholism and takeout food has finally paid off.

Nice fantasy, sure. But here's how things really happen. You get approached by a potential buyer but can't get a straight answer on whether they're ready to put real money or stock against a fair acquisition. Or, the buyer is qualified but you're not ready to sell--and you're terrified that the opportunity will never come again.