Don't ever buy anything from Magellan. I have had two of their GPS units that went T.U. and were SLIGHTLY out of warranty so the company told me to take a hike. Now I have a garmin e-trex summit which works great and has a built in compass, which is really handy for me. As to whether you need a gps or not, I can't answer that but I use mine plenty.

P.S. Did I mention to not EVER buy ANY Magellan product?