Have you considered Delorme PN-40? IMO, I have just recently bought the 40. I am no GPS expert and did some research on other GPS's. I found the 40 was the most reasonably price especially with the mapping software. What do you plan to use the GPS for? The Delorme website, along with others are so helpful, I am very glad I made the purchase with Delorme. The only additional benefit that I can see coming from Garmin is the radio receiver that works with others. That's great if you hunt with others and want to hear unwanted radio chatter surrounding you. It's just my thoughts on GPS's. I am very happy with the 40 along with everything that come with it. The batteries have lasted for me for two days straight with tracking, routing, etc. Total of 24hrs. I have never had a problem getting a signal and I live at 8500ft and have done about four hikes with the 40. It's been raining the past five days up here and I walked about two miles within my neighborhood and I never lost signal. I guess they say the rain will loose the signal to your GPS. Anyways, that had been my experience so far. Just wanted to input what I have experienced with the 40, good luck on your purchase!!