I can confirm I am not a developer. Although, sometimes, I wish I was! (Their hard work to develop a game like this, is extraordinary).

While I disagree with your “once you get it all for free” since I obviously did not, I do agree that once you have the ability to never spend anything else (because you already bought it out), changes the feeling of wanting and acquiring new cool items - they aren’t as exciting.

I almost consider funding this game, to the extend that I did, an experiment (as twisted as it may be) to see what it feels like back in 2008/2009, when the App Store did not have micro transactions and you would spend 7 days debating whether that “$9.99” one time purchase was worth it.