Virwox will work to get from dollars into cryptos, using paypal or credit card, but you will pay a high price in fees and have to deal with multiple exchanges to get BC.

coinbase and localbitcoins are great services to get your dollars into bitcoins and usually can get you bitcoins the same day, but then you will need to move them to an exchange to get BC...

Prelude.Io will allow you to buy directly with dollars, but you have to be verified and you need to make a bank wire transfer or go to a wells fargo bank and deposit to their account.  also you will find not a lot of volume there so you will probably pay a high price if you can even buy the amount you are looking for. (Please people consider buying and selling even small amounts of BC on prelude.io to help with this! More volume trading there will also encourage them to add BC to their other services including payment services and coming soon ATMs)

all of these options make BC adoption a bit difficult for the average person who is not already versed in cryptos.  

This is what we as a community need to work on, and it is not an easy problem because of financial regulations, but one we will have to face at some point if we want BC to continue to grow and someday rival BTC.