My Garmin Edge 800 displays everything I want (speed, cadence, distance, calories, heart rate, ride duration) without scrolling between screens. I never touch it when I start riding. I forgot to bring my Garmin on the ride today. My Cateye Strada only displayed speed and average speed. I didn't touch it to see the other data because I didn't want to be distracted while riding.

From my perspective the Garmin is much safer than a cycle-computer.

Does anybody drive their car without viewing their speedometer? I believe glancing at my Garmin is quite similar to viewing information on the dash in my car.