Potential consumer confusion has nothing to do with the size of Apple's cut or how it is structured.
Clearly, a 30% cut is fair for the average $1.5 purchase because it includes fees for payment processing and fixed cost per app.
But Apple will have to decide whether or not they want people to sell more expensive stuff on their platform. Taking a 30% cut on a $100 purchase is not economically viable and it is unnecessary if the goal is to avoid consumer confusion.
Clearly, a 30% cut is fair for the average $1.5 purchase because it includes fees for payment processing and fixed cost per app.
But Apple will have to decide whether or not they want people to sell more expensive stuff on their platform. Taking a 30% cut on a $100 purchase is not economically viable and it is unnecessary if the goal is to avoid consumer confusion.
They could just charge 50 cents + 5%