Except that if you are AP holders, there is usually an AP discount rate that you can book. Add to that - or rather subtract from that
DDP savings, depending on where you would eat, and how you would eat (Are you really going to order an appetizer, entree and dessert pp if you are paying for it?) - and usually you will realize that:
AP room only rates + DDP = usually a better deal
It also matters if you have kids. There is a slight difference on the room rate if you have kids and book a package, though the difference is smaller than in the past. I'm also using Disney prices. You can do slightly better buying tickets through a third party vendor, and if you've got AP's you won't really need to buy the tickets. But just to show comparisons:
5 nights CSR reg Standard(July 1) = $984.40 rack
5 nights CSR standard(July 1) +AP = $781.88
5 nights CSR stndrd(July 1) + 2adlt 1-day tkts, non-hop ($142.72) = 1127.12
5 nght CSR stdrd(7/1) + 2adlt, 1day tkts, non-hop as a package = $1129.42
2adlt tickets + 2kids (1day non-hop +tx) = $262
2kids tickets 1day non-hop = $119.28
5nght POR stnd(7/1) + 2 adults + 2 kids (1-day non-hop) as a pkg =$1251.00
5nht st(7/1) + 2 adlt +2 kids (1day nonhop)not pkg = $984.4+ 246 =$1230.4
5nght st(7/1) +2adl+2kids (1day nonhop) AP discount, non-pkg= $1043.88
free dinig 6 night CSR (9/1), 2ad +2kids, 1-day non-hop = $1082.20
same thing non-pkg, but no dining , non-pkg = $815.70 +262 = $1077.70
free dining 6night (9/1), 2 adults ONLY, 1 day non-hop = $960.62
same as above but w/2kids tickets =$960.62 + 119.28 = $1079.90
The differences aren't huge, but they are there. Part of the problem here is also that the AP discount for the fall has not yet been released -so I'm comparing "summer season" (5/24 - 8/4) rates to value season rates.
To FURTHER add to the confusion. It matters which resort you stay at. During the summer, the mods are operating at "Summer rates" which are high. But at the Deluxe resorts, april 15 - July 7 is reg season and July 8 - October 3 is part of "value" season. So if you do the math for a Deluxe you get different numbers completely. The AP rate for value season Deluxes (BC, YC) is $194 - compared to $315 rack rates! That's a big savings. It would be a much better deal to go during those rates than it would be to hit free dining!
The free dining pgk above at BC is $2657.20 (9/1-9/6)
AP room rate 5 nights at BC (8/1-8/6), plus 2 adult 1days (which you wouldn't need) $1091.25 + 143 = $1234.25 So thats $1423 for food for two adults. That gives you $142.30 per person to spend on food each day, for the same price. About the max. "value" of DDP is about $90 per day, per person.