It is indeed a good cause, and a great way to meet nice tattoo'd young hipster chicks riding '64 Honda Dreams. But at last year's ride I remembered how much I love the idea of, yet hate the reality of, large group riding. Especially here in Chicago, where it was through crowded urban streets--even on Sunday morning, it was just a little too crazy.
That said, I urge you to donate to prostate cancer research. Whether you choose to participate in the DGR itself is up to you!