I agree, Mr. Blue. That's one of the reasons that I only submit to the amount of link lists that I can fit on a single index. The other reason is laziness. At the same time, I wouldn't suggest my business plan to anyone, unless I didn't like them.
That makes complete sense. I guess if you really wanted to you could make the duplicate pages "no index" in the meta tags, but that would be kinda sleazy and unfair. So, less is more in the long run.