I'm a big fan of the Etrex 30, I got one just this spring to replace an old GS 60cx and I really like it. Here are my thoughts:
- Consider battery life. The Etrex 30 has tremendous battery life, I observe close to 36 hours using fresh disposable lithiums.
- I agree with the point made earlier the buttons on the Etrex are a bit hard to use on the bike. But how often do you use them? For me, 99% of the time I'm just mindlessly following a track and not otherwise interacting with the device.
My take is a touch screen is nice in theory, but perhaps not practical in the field for someone who's out for a long time and is usually wearing gloves.