How many of those are actual business transactions and how many are people buying/selling bitcoins or just moving coins around? While we are seeing more transactions as far as I know the only people buying with bitcoins are people buying illegal things and bitcoin hobbyists. With gold at the end of the day you have a precious metal and fiat currency you can always use to pay your taxes, but bitcoin has the potential to leave you with nothing of any value if it crashes, just like tulips. I'm not saying it definitely will crash but it's a worrying possibility and I personally would never have any large amount of net worth in bitcoins unless something changed