One thing that didn't come across/wasn't discussed is that you can divide Bitcoins into smaller parts.
I think we need to move to mBTC before folk begin to understand this.
A guy at my work didn't understand this either and he's a programmer like me. He assumed that they could only be moved in whole units and didn't understand how that would work if its a currency. When I explained it can be divided to 8dp, and that could be changed in the future he was like "ahhhhhhh that makes a lot more sense"