My husband is very similar. The good news is that he does love it once we are there and is always willing to go back. He just can't deal with my (admittedly endless) chatter and list making and deciding what (not just where) we should eats months in advance.
He has been often enough that he appreciates my planning and will very occasionally ask to make sure we do something or other. And slightly more frequently that we skip parades and live stage shows involving singing (true grump - I swear I could hear his eyes rolling during Voyage of the Little Mermaid).
But he really doesn't participate in planning beyond an initial when, how long, and how much conversation. This is true for all vacations. If I really want his input on something, I email him overly dramatic PowerPoint presentations laying out the options because they make him laugh and usually result in an answer.
One final tip - if he really hates crowds, lines, and walking, you might want to at least discuss the virtues of rope drop. And if you haven't already, make sure you look at Josh's (EasyWDW.com) recommended parks and cheat sheets.
I'm the planner. Dh asks for very little. He might help me decide between a few resorts, or request one specific meal. But in 9 trips it's all been up to me. However, he has a great time and I have heard several times "Kids, your mom plans the best trips ever!"

He appreciates it, but doesn't get excited until it's almost time to go. He's usually swamped with school and work and we take our vacations right after his exams. So he loves putting down the books, packing a bag and having fun for a week without having to worry about the details. It works for us so I don't mind. He was talking about DVC at dinner the other night though. Which is weird for him. I think we mostly decided it just doesn't make sense for us (again) but it was interesting that he brought it up.
Find out what makes your DH tick. Both of us are frugal by nature and love getting the best deals. Our first WDW trip was because we had Give a Day passes - so 1 free entry each. We planned a long weekend since we had some airmiles to burn. Ended up staying onsite because it was cheaper than offsite (because of ME).
DH fell absolutely in love with the place. I was completely shocked. This is SO not my DH. He barely knows any of the characters and has watched only a handful of Disney movies. I remember when we were dating, he had no idea of the storyline of most fairy tales (and still doesn't).
He hadn't listened to a word of all my excited planning chatter, I made him watch Youtube videos he somehow has no clue about. Even if you ask him today what it is he loves about WDW - he can't verbalize it. I call it pixie dust.
He loved that we didn't wait in many lines. He really loves feeling like a VIP and the idea of walking past the poor folks in standby lines gave him a huge kick.
He loves that the whole family is together for most things. He has zero interest in Universal because he doesn't do coasters and such. At WDW, he only has to sit on a bench for a few rides. On a side note, he has no problems sitting on a bench waiting - we had season passes for Cedar Point and in a dozen trips over one summer, he spent 50% of his time waiting for DD and I - and was happy about it because he likes seeing us have so much fun.
He loves the
free dining deals I get. He loves feeling like we scored an awesome deal.
He loves that there is so much to see and do always.
Most of all - he loves my planning so he doesn't have to stress about any logistics.
On my part, I no longer bore him with planning chatter. I'll ask now and again stuff like, "do you want to stay here for $xx or spend $xx more to stay here?". "How many times do you want to eat at your fave place, Ohana?".
Most of my planning obsessions are restricted to the Dis. He likes it that way. I wish he was more into planning - but I also know I am over the top nuts (hey, it's my way to relax!).