When the time comes that it is advantageous to use bitcoin to do business, you will not have to spend 5 hours explaining why we want to use bitcoins, you will take 1 minute to say "We could use bitcoins", the guy you are talking to will already have heard about it, and then you spend a couple minutes working out specific details.
We are not to that point yet, but someday people will suggest to you to use bitcoins because it will be better for them.
Its is a chicken and an egg. The VC I think are playing this absolutley retardedly. Like any corporation they must set aside money for marketing. Not because marketing in and of itself is profitable.. IT IS NOT! But because the value of the product being marketed become more valuable.
There should be active campaigns to engage the public. Concerts, mass flyer distribution at sporting events... Or else all the ideas of the billions they are dreaming of making, will never come to.