junction34:
Why buy a GPS if you're not going to use it for *any* form of navigation?
Re-read my post. I have a dedicated aviation GPS, which I *do* use for navigation, has a moving map etc with airfield database, but it doesn't log tracks.
I also have a Garmin HCx, which is really a hand-held walker's GPS. The screen is tiny, it doesn't have aviation charts, but can do a direction/distance to a waypoint... if you have any airfields etc in there. It's fiddly to use also.
HOWEVER... the HCx is excellent at recording tracks of where you've been, and for that reason I sometimes carry it in the aeroplane, particularly on IMC flights when it's useful to see how accurate the holds or height-keeping etc were.
I would NOT suggest any of the Garmin eTrex series were purchased primarily for aviation navigation use, hence my previous post.