A great example of "competition being great" is happening right now in monitors
Dell, MSI, Asus, HP, etc
All are bringing OLED 32" 240hz 4k monitors to market right now.
Here's the kicker -- all are using the same panel
They are competing on exact specs of connectivity and warranty and some smaller spec variations
Dell came out first with theirs (Alienware) and a great multi-year burn in warranty, which is a big thing on OLEDs.
Sure enough, the other brands just announced their own coverage of OLED burn in, which they previously weren't offering, in order to match up with Dell and not have that be used against their offerings.
Competition, alone, is what drove a great upgrade and warranty for the consumers.
Everyone here should want competition in business.
It's literally a benefit to you
An Apple App Store with actual competition would benefit you as the consumer