The computer gives good information, I used to log all my rides and compare average speed.
After a few years of that, however, I found I was a slave to the device. I found myself looking more at the computer and less at the world around me.
I finally took computers off all my bikes and enjoy riding much more. I wish I could have the computer and not be so focused on it, but thats just me. I've even thought of turning it upside down, but that would look dumb.