I understand it is possible to sell the same application both in the market and outside it, great.

I still don't understand a few things, that AFAIK are not mentioned in the contract but I might have missed or misunderstood something, so I'm going to ask.

Disclaimer: I know you're not a lawyer, etc. etc.

Let's say I give in the market a demo version, and I sell in the market the full version too. May I also sell the full version outside the market?

I understand that you can't give away the demo in the market and then collect the payment outside, but what if I do allow the user to buy it in the market, but also allow him to buy outside the market?

What if I charge a lower price if he buys outside the market?