The problem there is once I’m “done” with all but mythics, with no way to target the mythics I need, I’ll be done. If I can spend 4 months using every resource earned and get no mythics, why bother striving to get them?
But If you could get mythics for 250k each, I’d be farming souls forever to get 4 of each mythic eventually.
The second option will keep me as a playing / paying customer for FAR longer.