DH is not big on "rides" but he looks forward to going out for dinner on vacation. The hardest part is planning which parks to tour in advance by looking at the hours & when EMH's are offered but once I get that settled in my mind, then I'll make our ADR's based on where we're going to be anyway.
Having done
DDP only once, I saved all our receipts & compared them when I got home & found we saved about 10% over what it would have cost OOP. Without DDP, we probably wouldn't have ordered drinks & desserts at all the counter services, but it was nice to be able to get a nice cold drink while touring in the summer heat.
For our next trip, I booked ADR's & estimated the cost, then added $19 for CS & snack. I found that DDP costs approx. the same if paying OOP & until you actually save those receipts to compare, it's going to be your best guess whether it'll save you money or not. Since my numbers are close, I'm opting for now to start saving & will probably pay OOP unless a dining deal is offered, then I'd gladly take the deal
But I can cut out the dessets, a lot of the drinks & just carry water bottles if paying OOP and 180 out it's hard to finalize ADR's so those are always subject to change and can be scaled back a smidge by doing lunch vs. dinner &/or not doing CRT this trip if no dining promo.
I don't think it's that people don't like the DDP, I think it just varies with people if it works our for them. And as others posted, they either don't want to fret over making sure they get a good value for what they've paid &/or they don't want to do as much planning.