Yes, I agree, a GPS with the mapping chip is awesome. Last year was the first year that I had it, and what a difference. We used it last week to make drifts over Niagra Reef. You could really get a good drift line over the edges, and when we caught two on the first drift, we could go back to the exact spot that we started and do it again. I'm much more aware now of a few shallow spots that could really cause some damage to the boat if the water levels ever drop. The first time I ever saw one of these in action was on a charter and a heavy fog settled in while we were out. You couldn't see 10 feet away, but with the GPS mapping chart we got right back. I spent about $800 and I'm glad I did.