I think one thing some people are missing is that short beats sometimes seem so tight because they are short. They basically leave you wanting more. I'm not saying they wouldn't still be tight if they were longer, but they would lose some of that impact.
A perfect example for me would be 5 Arch Angels. When I heard the little snipped on "The Last Shall Be First," it was like the tightest thing I had ever heard. When I heard the full song, it was still tight to me, but just didn't hit me as hard. It's like I got used to it over the course of the song. I think that's a product of sampling.
Emotions are for the weak, so I sold mine to the highest bidder.