Okay, so here's my take on DME:
People (generalizing) will book a vacation on property and utilize the DME because let's really gaze into the mirror, we all know right where to go and we don't have to get our luggage.
People (generalizing) have gotten sick and tired of looking for their "limo" or "shuttle" by "XY" company and tired of the prices.
Granted, while it may not be "free" (the DME), it is automatically "pre-calculated" into your vacation price, you're not shelling out any additional money, not panicking over a barely English speaking driver having your credit card information and seriously, most of all....you bypass the luggage. I would pay for the ME, and avoid the "lesser knowns".
We need to remember we all live in the same self-gratifying world, where not too long ago everyone was screaming about losing their appy on the
DDP and not saving anything but a dollar.
Where am I going with this? Disney is doing the same thing other resorts have always offered, and they're doing it better than most. Plain and simple.