Originally Posted by marco polo
Why would you not buy a unit designed for use in bright sunlight (the 276C is a marine unit, after all, meant for use on a boat)?
Simple. It costs more to outfit the 276C to do everything the 2610 does.
If you are going to be riding mostly on North American pavement, the 2610 costs less and provides everything you need. You can put all the maps on a 2G CF card, and never have to hook it up to a computer - no matter where you want to go.
The 276 screen is beautiful, and marvelous to look at. However, with the voice prompts that you should be using, the beauty of the screen shouldn't matter a whole lot. We're looking at maps here, not hi-res photographs.
I'm not saying that either performs better, but the 2610 is clearly the bargain.