Well but that is a lot. Why? Because a big business won't do things suddenly and recklessly.
They need to analyze and test and test and test again to see if it would be good for whatever they want to achievement by doing it. Right now due to the really unstable nature of Bitcoin it's not really that attractive more than to invest and it's still a great risk for them. Because they might need capital later.
Capital is to a business what air is to us.