Ask HN: Favorite iOS Game Revenue Model

I am building an iOS game, and was wondering what the community thought of the different revenue models.

Here are the three I am considering:

-One time purchase.

-Free, completely based on many microtransactions.

-Free, demo with full game as in-app purchase

One time purchase.

- Reach Smaller Audience

- Full experience without bothering user

- Customer must buy before trying

- Fixed profit per user

Free, completely based on many microtransactions.

- Reach Larger Audience

- Must bother user constantly for small in-app purchases.

- Possibility of high profit per user.

Free, demo with full game as in-app purchase.

- Reach Larger Audience

- Less annoying than microtransactions.

- Customer has tried and enjoys enough to purchase.

- Fixed profit per user (possibility of higher price than one time)

I would love input on the ideal model for maximum revenue and app experience.