Not me. My Garmin Edge 1000 or Edge 25 record all of my rides. They give me turn by turn navigation. I do a lot of group rides and a lot of those are new to me, so it beats fumbling with a cue sheet. All of it gets uploaded to Strava automatically. I can see how many miles I have on every component on my bike. I can see if I'm getting faster or slower.

Why would I give all of that up?