I find it impossible to ride naked, truthfully. Its great to see progress (or lack of) over the years, and i find that satisfying and helps me push more. Really dont see a downside to it. If i want a zen ride, i could do that too, by not paying attention to the thing while riding. I love technology for its own sake too usually.

On an aside, it is kind of cool to check out Team Garmin's stats on their training rides in Spain etc, and how they average 25mph on hilly routes.