I think that running conventional ideas with bitcoin is somewhat limiting yourself. None of the ideas suggested in the OP are unique to bitcoin, they're just doing the same ol stuff with a shiny new form of payment. And truth be told, there's no good reason for anyone to use the shiny new thing on the old ideas cause the old shiny things worked just fine (for very-much most of the people). This is just reality. No matter how much bitcoin is 'a better money', if it's not more convenient, people won't use it. And let's face it, regular money is pretty damn convenient now with internet banking etc. Not as good as bitcoin, but still, pretty damn convenient.
There's always the argument of 'less fees is a big incentive' which I totally agree, and 'instant is awesome', again I agree, but I don't think that's enough of a lure to take people away from their convention, especially given the current mainstream notion of bitcoin is generally along the idea that it facilitates shadiness which is of no additional benefit to their needs over cash/wire/paypal/whatever. To most people, it's just another money. To really have an ambitious startup idea, you have to show how bitcoin is more than just another money. None of the OP ideas do that imo.
There are some amazing opportunities for bitcoin to expand NEW areas of commerce, none of those are listed in the OP. I would love to say what I think they are, but I'm working on some of them now, so you'll just have to wait and see. Bitcoin, as you say, is amazing. But it's amazing mainly because of the new stuff we can do with it, not because we can appropriate it to the old stuff.
I just don't see
Take existing product X
Add bitcoins to get Y
Sell product Y
as frighteningly ambitious...
Don't take this too hard. It's great to see such enthusiasm from a noob. An equal amount of creativity would really blow me away. And as a final 'optimist prime' statement to counteract my 'negatron' post - having the appropriations in place will certainly make the creative ideas even stronger by a whole magnitude than if they didn't exist.
You are absolutely right my ideas are not very new or original. Just like the people that build the web could never have imagined google, facebook, groupon, blogs etc, bitcoin long term will bring new products, services and cultural shift that we can't even contemplate to day.
As a noob I'm interested to hear what ideas the community things are amazing and ambitious.