Best MR areas are on the weekends around IAD, Chicago suburbs, SF East Bay (C+P only,) and PHX in the summer. Of course, I've done CT runs when they had the 10k pt bonuses, and the MCO area (HP MCO is like 5k on awards so find a 2.5k C+P nt,) but those probably aren't coming back any time soon.
Don't think its worth doing any more, especially since no DIA/Glob amenity points and 60 nts vs 25 stays as many of these areas had multiple properties at low rates so bouncing paid off.
But if you just need a few nts, then OK.