I wish I could just telepathically beam disney-loving thoughts into your DH, but my psych degree didn't include that course.
Just some ideas of what I did to get my DH to get excited about Disney - though, granted, the trip was already planned and paid for as part of a family reunion so that part wasn't a consideration. But I went for stealth, bringing up little Disney tidbits or memories I knew he'd like (since he's an IT guy, stuff about Pixar and Steve Jobs were key) and then dropping it. I pulled up
YouTube videos on Walt's original design for Epcot and he watched it all the way through with me, in the end deciding that he really liked how Walt thought. I'd pull up the occasional picture of WDW - always the unexpected stuff that got him thinking it was more than long lines and characters with big heads. What finally did it for my always hungry hubby was looking at the menues here on Dis.

I never shoved any of this in his face - usually I'd just "happen" to be looking at it online when he was in the same room and bored and he'd look out of curiousity. Anyway, it worked and, while he's not exactly planning the next vacation as we speak, he does occasionally say "next time we're at Disney..." That's good enough for me.
Why specifically does your DH think he won't enjoy Disney? My DH and I are pretty factual people so early on in the planning for our trip I point-blank asked him why he wasn't eager to go and it came down to him thinking WDW was a large 6-flags with longer lines and less roller coasters. I didn't immediately beat him down (though seriously, 6-flags???) but just said something like "ew. That does sound horrible" and then started on the afformentioned tactics. He didn't feel defensive but realized that his view of disney wasn't mine and that made him curious. If nothing else works there's the solo weekend trip (highly recommended) or the "oh, honey, I just got a FANTASTIC deal during a low-crowd time and you can spend every minute golfing/fishing/hiking/lying on the beach reading if you like. Let's just do one weekend and if you don't like it we won't go back." Or something like that. Granted, some DHs will go for that, some won't. You know yours best.
