I bought a Garmin 200 when they were on sale after the 25 was released. I like that it is small, wireless, and I can move it between all my bikes. I don't see that it detracts from the C&V aesthetic, since I had a Peugeot bike computer back in 1984, when some of my bikes were brand new. It was much larger and had 10 buttons!
http://www.bikeforums.net/classic-vi...-computer.html
Edit: I just went back and looked at the thread above. T-mar posted a pic of some of the first electronic bike computers. A Garmin is an improvement vs. some of those things.