update
I was just looking at the "bells and whistles" in the catalogue:
-Barometric altimeter (you gonna use that?)
-weather forecasting (yeah, right!)
-10 routes vs 1 (you only use one at a time, if at all) Not a fantastically usefule feature, (IMHO), but maybe for a trapline or something.
-"basemap of north America" Read that as "you are near vancouver, 20km from the nearest major highway. (if you got there, you knew that)
-color screens are nice
sometimes. I find you end up screwing with your contrast more often. (to each their own)
-ability to upload and download points (there is some free mapping sofware available over the 'net) The etrex does it (I think, but don't quote me) and it's valuable to go to a point where you've never been, or to see where your point actually fell on a map (which swamp was I in, who's property was I on...etc)
-ability to upload maps (I think this starts with the etrex legend - level) is useful, if you want to pay $100 for the maps, learn how to use the loading program (which isn't hard, but still

) and load up the maps you most commonly use. As you get into more expensive units, you're paying for memory (IMHO) to load more maps. You can load several basemaps on a small unit (like a legend) depending on how many "features" you want to use (like topography), but a load large geography into a bigger unit (like a map76 CS level). Then you're talking $400- infinity when you
include the cost of the mapping program.
I like GPS's. I don't want to sound like a know it all, but I've used them a lot. Just trying to be helpful.
D