I have had Garmin 105, 705 and 1000. I just bought 2 more 705's as I've their batteries last the longest on rides. I think the data can be helpful for the type riding I do. When doing climbs I find it helpful to have distance, grade and elevation. It helps me to stay within my abilities. I don't track and record data like I used to but rely more on my knowledge and experience. I'm not a star a guy. Garmin can also be useful to preload routes.