It's about 5 business days for coinbase to enable your account, not to mention the risk of giving a vendor access to your bank out. And I think each buy/sell transaction also takes a few days to apply?

> transactions are nearly instant; confirmations take a few minutes

This is true for my credit card too.

> payments are irrevocable - no chargeback issues

As a customer, I prefer the ability to make a chargeback.

> you can pay anyone anywhere at anytime - no bank holidays, no paying Western Union fees to send money oversees and have it still take days

I specifically excluded international transfers in my question. Anyway, these are heavily regulated and risk and volatility of bitcoin simply aren't worthwhile in comparison to the few dollars I would save.

> pseudo anonymous - you don't have to provide personal information to a financial organization to make payments

Could possibly be an advantage but isn't really true because coinbase would know all about me and all my transactions could be traced back to them by just traversing the block chain.

> many vendors give a discounts for users willing to pay in bitcoin vs. dollars

I would think about using bitcoin for this reason if I could convert USD -> BTC and quickly buy whatever I needed using BTC. But again this is something that takes days and who knows what the USD->BTC rate would be when I eventually do get my bitcoin. It's simply not worth it.