Remember that just because it has a feature you don't think you want, doesn't mean you have to use that feature. I've used navigation once in the more than 2 years I've owned my Garmin Edge 530. I look at the map seldom. It's the other features and ability to use certain sensors that I like and use it for.
However I do wish it was a touch screen Edge 830 or the Edge 1030 plus. Touch screen just because it makes getting to all the other nifty features easier. Especially while riding.