Disneyland is fantastic. I had a season pass when I lived in SoCal. Part of my joy with it likely has to do with the fact that there was NOTHING to do in my hometown, but I'm okay with that. When I go now, I no longer feel obligated to do the "OMG HAVE TO RIDE ALL THE RIDES" thing I do with other theme parks. To be honest, the only rides I tend to care about are Jungle Cruise, Space Mountain, Indiana Jones, Haunted Mansion, Matterhorn, and Pirates of the Caribbean. Some of the other favorites I do depending on my mood and the trend in my group. I have had several experiences that were made up of nothing but a small handful of those rides repeatedly -- this works especially well for Jungle Cruise, which is personalized by the person who's giving the "tour." I've also spent enough time in the open-air shopping mall that is "Downtown Disney" and don't mind doing that.
Anyway. Rides aside, Disneyland is so very much about the overall experience. And the ridiculously overpriced food. Goddamn I love those turkey legs. And churros. And the Tiki Lounge's pineapple freezes. And, in the winter, the design-your-own cookies, and white cotton candy with sprinkles.
If you've never been, and you can handle the $87 ticket, and maybe have $20-50 to spend inside, I HIGHLY recommend going.
(For what it's worth, I never bother with California Adventure if I have to pay for it. There are like 2 rides I care about -- the big coaster and Tower of Terror -- and the rest of the park is uninteresting.)
