I bought my first GPS 5 years ago. It was a Garmin Model 45. I had no trouble powering it up (starting it) but it went downhill from there. Never really got comfortable with it.
I recently purchased a Magellan Meridien Color unit using Ebay. Wal-Mart sells it for $449, but I got one for $360 on Ebay. This thing is ions better than the Garmin 45. Like most electronics, the technology advances 2 X per year. It is easy to use and easily locks in on the minimum 3 satellites necessary for an accurate fix, even inside my car.
I bought one for safety purposes. A group of us have some fields leased and there are always some treacherous ruts and holes in these fields. And every year they are in different spots. On those foggy days, in the dark, you need to know where you are going or you may end up with a 700 lb Grizzly on top of you (the Yamaha variety). But, the main reason I bought my new GPS is because a couple of our fields border on one of Wingman's places and I hear he shoots tresspassers on sight!!!
If you are looking for a good deal on a GPS, make sure you visit Ebay. There are some real deals on there.