Alright so maybe bitcoin is just so small of an economy that it would not be reasonable to expect any business to thrive solely on it.
How big of an economy is bitcoin exactly, in terms of USD? Looking at
blockchain.info's USD transaction volume chart we can see the daily transaction volumes this past month reach a low of 1 Million per day to a high of 12.5 Million. That is
Per Day. How much of that do you think is going towards legitimate bitcoin business?
One need to remember that those stats include every transaction, if you just move your coins around they are included in this list.
If you have to move coins multiple times, they add up again.
There are far less coins used to buy things daily.