It depends on how much they need that 600 million right now. To put it another way, if you owned a $500,000 two story apartment building that made around $20,000 a year in rent after expenses/taxes, would you sell it for $600,000? I wouldn't. I probably would. You're looking at trading $20K a year for a one time shot of $100K, but you're overlooking the opportunity to reinvest the original 500K while keeping the extra 100K (or better yet, reinvest the whole 600K, if you're a little lucky or savy, you could turn the 600 into more than 20 a year).