I believe that you are right.

Bitcoin has to be more widely accepted in order to succeed.

The value right now is only that it can be used in suspicious deals where i don´t wish to tell the banks (and by that the authorities) what i should use the money for, and who i give the money to. And of cause there is a speculative value in BTC.

As BTC cannot be created in the same way as fx USD, which is created every time a bank grant a loan, an increased number of transactions will increase the value of BTC.