By having a 30% commission on the AppStore , us (the consumer) are paying extra for it. Why is everyone supporting Apple?
Developers like myself get more money per sale from Apple than Epic. So no, if anything without Apple you would be paying more. And as a previous poster noted, you would be paying a lot more for software as developer costs are significantly higher on the Epic store. The only lower cost store just now is Microsofts as they are feature competitive with Valve and Apple.
Even though Epic game store is more expensive, we would still charge the same $39.99 or $9.99 as Steam, AppStore, and Google Play. The cheeper stores like Steam, Google Play, and The AppStore would just subside the losses made on the Epic store.