Actually, 4 stays at the correct CT prop's would generate over 50k Hyatt pts, factoring in the G bonuses, and the current 10k 4 5 stays promo, for about $430, as I'm doing this month.
But to answer your question, even in years where my travel has been restricted, the value of DIA, to me, is:
$20 to $32 per person for free breakfast;
$10 per day for internet;
At least $20 per day for Club snacks/drinks/etc (of course, my older son can really make that increase dramatically, especially at the GH Toyko and GH HKG
At least $20 per day for upgraded room; plus
500 to 1000 addition points even on award or miles stays for DIA amenity.
So, it doesn't really take too many stays as DIA to make it worthwhile. If you do 25 stays a year, it's a no brainer.