I usually agree with what my friend, TDLFAN, has to say. But this is one case where we diverge. Maybe because he's a local and I'm someone who's a few hundred miles away.
But I think EMH's -- at least the new incarnation with night hours -- are a great perq for staying at a WDW resort (or Swan/Dolphin/Hilton).
That said, much like the horrible E-Ride nights at the MK, I do have issues when the EXTRA magic really isn't or shouldn't be.
The MK would regularly close at midnight at this time of year and it still does. So allowing resort guest night owls to stay until 3 a.m. is a great incentive.
DAK would normally close at 8 p.m. this time of year. So resort guests get to stay until 11.
What's wrong there?
Nothing. Day/off-site/local visitors aren't getting screwed. And those paying to stay on-site are getting something extra.
Where I agree with TDLFAN is with parks like Epcot and MGM, which in the past would also be open until 11 or midnight this time of year. They close much earlier for everyone ... and then resort guests get 1 night (or two this busy time) to stay an extra three hours. Clearly, anyone not staying on property is getting less than what used to be included. And even on-site guests are getting less.
And during other times, the disparity can be worse.
So I guess it just depends on what park you're visiting and when ... sometimes it is definitely not gaining something extra, just something that was taken away years ago in one of the many waves of cutbacks.