The Bitcoin market is a flea on an elephants ass currently. Small fish (the winklevoss douches) that want to be big fish are buying in...
The Winklevoss are also young and have time to grow into very big fishes. Remember, the wealth held by those in their 50s, 60s and 70s
must be passed down to the younger generation. Bitcoin is one possible mechanism to facilitate this.
A lot can happen in a generation.
That passing of wealth with Bitcoin is a very interesting idea...a lot of interesting tax possibilities also.