Sure, there will be setbacks from entrenched interests, but the best way to fight that is to be positive and help build the bitcoin economy. Soon, the entrenched interests will be joining our economy.
Please do explain how you could ever have a full Bitcoin economy (not relying on an exchange rate) if spending Bitcoins is only going to hurt financially.
Honestly, I view Bitcoin more as a future store of value (encrypted wallet copied everywhere, easily redeemable, easy to acquire etc.) than a currency, just like precious metals. It will probably only be adopted as a currency in areas where it has critical advantages (where you practically *need* Bitcoin), not just "low transaction fees fees, no chargebacks, no middlemen". Hence Silk Road.
I would love to be wrong though.