[zw]

Trials and upgrades are niceties for the developer, not the user. The App Store isn't made for developers, it's made for users. If developers want access to those users, they should build businesses not oriented around extorting money to fix their technical debt.

[cpr]

Sure, but if users want developers to stay in business, the latter need recurring revenue from ongoing investment.

"Extorting money to fix their technical debt". Really?

[titaniumdecoy]

I guess you're still using Photoshop version 1. You wouldn't want to pay for all that technical debt in subsequent versions, after all.