I used to hoard & then I burned through a lot (over 1 million miles on F-class international trips for either myself or as a gift to my sister) & now I'm a bit back in the hoarding mode. I'm quite nervous that I only have 250K left in my UA account

I never use airline points for domestic travel; just F Int'l. Thanks to *Alliance I can usually get a F Int'l ticket.
I've also blown through several hundred thousand Marriott & Hilton points after saving them for quite a while. I'm now hoarding my remaining Hilton points (175K) but will probably use up the last of Marriott points for my annual birthday trip to London in February (thread in Community re: Feb Prez Weekend London Do if anyone's interested).
I also don't really pay attention to the 'devaluation'. I figure it is what it is.
My travel has lessened in the last couple of years, which is one of the reasons I'm back in the hoarding mode.
Cheers.