I remember reading awhile back that Bitcoin is considered the beta technology and that something will come out to replace it with all the bugs worked out. It will be considered "Bitcoin 2.0" Mark Cuban supposedly commented that he won't touch Bitcoin, but he will dump a lot of money into Bitcoin 2.0. Have you heard of Bitcoin 2.0 or have an inkling of what this might be?
Mark Cuban only wont invest in bitcoin because he wanted to get in at a lower price, has he spoke recently since the price has been down? wouldnt be surprised if he is in or gets in.
You have to be careful when someone says he is not betting on bitcoin, maybe he is keeping most its bitcoins but selling some and by the time you read what he said he is already thinking it's time to buy bitcoins again.