That's fair, but you must accept that the level of control is variable, and you have no say in what it is. It's in the ongoing hands of Apple, not you the purchaser of the product. You're accepting a situation in which, theoretically, you could wake up tomorrow with none of your apps available, including those you've paid for, including those you depend upon, possibly for income. I'm not saying necessarily that such a situation should be impossible, but I think many consumers don't recognise it.