I figure the same way as PP
I can only compare to GP discounts, or rack rate. AP discounts over GP discounts adds up pretty quick.
The rooms I book aren't on Priceline, or other deep discount sites.
Plus, I don't gamble. I'm not risking where I want to stay on the majority of my trips.
I'm toying with using the blind booking for 1 night next month but I'm still afraid of it.
Plus, I'm not seeing anything any way.
We only eat TS but use TiW for that, and we drink (a lot,

)
And I tend to shop, a lot LOL
We skrimp on other things, like new cars only when the current one has wheels falling off. We stay in houses for a long time, well smaller than our budget would otherwise dictate. Our fun times, Disney trips and season football tickets, are worth whatever we pay. We'll skip something else.
So far, it's still fun. It has to change before we opt to skip our tickets.