I just bought them... as I said, I couldn't help myself. I never thought of the Lord Saruman the White as a villain, more like someone who a psychotherapist would describe as "misunderstood," "hadn't yet reached Self-Actualization in Maslow's hierarchy of needs," or hadn't reached that place to "express unconditional positive regard for others."
In the books, he seems a little nicer than in the films... but Sir Christopher Lee had a way of scaring the breath out of anyone!
Also, I associated the Dunlendings with "my people." As an American, I'm able to pull out whichever ethnicity suits me at the time, so the Dunlendings were like my Scottish ancestors. So the Lord Saruman intended to cede Rohan to the Dunlendings as an independent representative republic with fair and free elections.
So I didn't really like the Rohirrim who were drove my people from our homelands. (I'm also very distantly Irish and Cherokee... very, very, very distantly.) So it was like history repeating itself.
I have the massive board game War of the Ring (which isn't the computer game of the same name, but I own that, too). I attempt to take the Fellowship either through the Gap of Calenardhon (or, if you prefer, "Gap of Rohan"), or south of the Ered Nimrais (White Mountains) though West Gondor crossing the Lefnui River into Pinnath Gelin. I wasn't really sure how to get the Ruling Ring into Mordor before the Shadow conquered all the Free Peoples... but the One Ring was the most beautiful, attractive, alluring, and appealing thing in all of Middle-Earth. Surely keeping it for myself just a little longer isn't so bad, is it?