It's not a challenge and that's the issue. In fact, the very reason it's not hard is caused by the fact that your phat l3wtz cost 500K. You sell your ever-respawning slightly less-phat-l3wtz for 20K apiece until you have enough for your real phat l3wtz.
What 'growing power' do you get from having 2 extra armor on your body and 1 more on your arms? You're cool with a fundamentally broken economy caused by phat l3wt dropz as long as you get your 'RPG' playstyle. This isn't Skyrim.
I agree that making money is currently too easy, but so far I've gotten rich in 3 playthroughs without doing anything related what you claim is breaking the economy... I just had a good amount of fiefs. Progression
Could you please explain to me why my "phat l3wt" being expensive destroys the economy in such a way that it can't easily be balanced?
Armor progression isn't where it needs to be, high end armor is far too weak compared to mid-tier armor right now. On top of that, armor value itself is also stupidly ineffective sadly, but those things will hopefully be fixed.
And no, this isn't skyrim, it's a different game with RPG mechanics, what's your point? Do you have any reason for being so thoroughly nasty and hostile?