I never understood why these companies just didn't invest as a hedge. A lot of these startups didn't need outright purchase but wanted working capital. Blockbuster could have bought 10% of Netflix as a hedge and seems like similar things here. You also don't have all the "merge everything together" nonsense that kills deals like this AOL+Time Warner and now Verizon+Yahoo+AOL. You can hedge a call option with a put option once you understand how.