Those who are dining would be paying that much anyway, if they are tipping properly.
Oh, I don't know... We're currently paying $38.99 and we typically leave $5 extra tip (often more) to bring the total tip to or above 20%. We also order desserts we have no intention of eating to drive up the total tip for the server. They work hard for their money, and we want to be sure they get it.
With 2A/1C, we're only paying about $42 or so per adult now. That's a long way from $49.
However, many people tip 15% (which is an okay tip) and feel that 18% is generous...at $38.99. Some (not me) think 18% is too high.
Others think they should pay the tip based on what they
paid for
DDP, not on the make-believe prices on the menu. In other words, they agree with the approach the non-Disney restaurants take -- the meal is $25.00, the tip is $4.50, no matter what the menu price is. I don't agree with that, but there are those who do.
I don't personally know how Disney is making much money on the dining plan.
I don't think they are, or ever intended to. But I think they'd like to make it revenue-neutral, or maybe turn a small profit if they could.
If you go back a few years in WDW history, you'll recall a few inconvenient hurricanes. That's what spawned the DDP, not the prospect of getting rich in the restaurants. DDP was originally, and still is mostly, a hotel promotion -- not a dining promotion. When the Orlando area tourism industry was dying two years ago, DDP allowed Disney to fare much better than anyone else. DDP is just one of several initiatives Disney has tried (DME is another) to lure people onsite and keep them there.
We tend to evaluate this issue on the impact on us personally, or in terms of our concern for the CMs. Most of us who go to WDW regularly have a soft spot in our hearts for "our" CMs. But to Disney, this is just an MBA money puzzle. What's the impact on revenue? What's the impact on income? As long as DDP offers better revenue and income, we'll have DDP. The instant some other program offers a better return, DDP will be history.