Originally Posted by NasserAE
You are just speculating. You don't know if you will pay more for purchases through Amazon.com and there is no reason for you to pay more if you buy your ebooks using Amazon.com. If you don't want to go through the in app purchase process then you can fire up your Safari browser from iOS and buy the book through Amazon website. When you open the kindle app you will see you new purchase.
Yes, I agree with you, I am speculating. I did explain in an earlier post that, provided as a user, I do not pay more through the webstore than I should, because of the in-app purchases, then I have NO issue with that whole affair.
However, as other posters and I have stated, it would lead to a curious situation where people have the opportunity to pay 30% more to not leave the app and go to the webstore...
Of course, some people are right when they say 30% is a share that might change. Hence, let's say X%.
However, if someone goes through in app because they use the service of "I'm not leaving the app", they WILL pay something close to (X%+(price of feature development)/(number of sales until feature development has been paid for). That money is not magically created through the process.
Either the client for that service pays for it, either other clients pay for it. In both case, someone does pay for it, and it's neither Apple nor the content provider.