Not sure why new generated coins should cost more...
Paper money costs the same if it is brand new or old if it is in circulation . 1$ is still 1$
I myself have been trying to figure this out it is an intriguing notion non the less. I think it is good to think outside the box for new ways to use/exploit Bitcoins but I'm not sure how this is useful at this time.
Do a little more thinking outside the box and you will get to an answer.
I honestly think there is, will be a market for it in time, maybe not right now as BTC is not commonly used by the mainstream.