In the past I was very anti GPS. Due in the main to my prolific use of maps in my aviation days.

However, as an aid to getting from A to B I think they are superb. Plan the route using a contepory map, use the GPS for the fine tuning. I. E. the last couple of miles in unknown territory. (Thats normally when I get geographically confused - that would be 'lost' in laymans terms!!!)

They have there place place but they should not be deemed to be right every time.

Where they do win with me is the speed camera warnings they give you - for that function alone - a life or should I say license saver.

All good points for a GPS.
Here is one no one has mentioned I can download routes to my GPS.

Here are some Motorcyle routes that I down load.
http://www.openroadjourney.com/

They have routes in most states. You down load to S&T or garmins Mapsource and then download to GPS. That way when I get to where ever I am heading I can then just hit routes and it takes me through the pretty roads that I would never find on my own states away from home. Pretty Neat.
Mine also has a trip log so that when I get back home I can download to PC the whole trip if I want , it also tells elevation and more. REally Neat.

So if you get one make sure it can download routes from your PC.

I have a Garmin 760 older model, and I am learning new things every trip.
It really came in handy sitting in a Hardee's in Roanoke VA and was able to call motels in the area and get their rates and book a room. (I was too tired to go driving around and asking.

MaxB (GPS convert , but still get state maps at boarders.)