Quirky idea - kind of like if iTunes made the vocal tracks of songs free but charged if you wanted the full version with instruments (Can you imagine listening to Nickleback - vocals only?? Heave...SPLAT!)
Can't wait to learn the Creative Strategy behind trying to sell a notorious software/operating system on a pay-per-use basis. Might as well put a "Coin Return" slot on the side to mollify people waiting for refunds.
But, don't worry. It won't happen. At least while Microsoft has their A-Team of Word Manglers on the case.
"...requires more or less a one chance at the consumer kind of mentality, where elasticity curves are based on the pressure to maximize profits on a one-time-sale, one-shot-at-the-consumer mentality."
Sweet jimminy! First, never trust anyone who uses the word "Granular" and the topic of conversation isn't about sand.
Secondly, if Microsoft can't explain their concept without resorting to mind-bending jargon, do they think Joe Six-Pack will sit back ride their Elasticity Curve??
Microsoft's Communication Department needs a base-line, granular paradigm shift at the 100,000 ft. level.