Throw in a regular Freedom and an Ink Cash, gift cards, etc. and you can do even better, though at some point keeping track of it all starts having its own cost.
5X rotating bonus categories on Freedom.
5X airfare on Amex Platinum.
3X travel and dining on Sapphire Reserve.
1.5X non-bonusable spend on Freedom Unlimited.
I haven't averaged my return but its, uh, high :) I feel better about the time spent since its sort of a hobby.