I use a vintage Legend simply because I have already owned it for years. I also bought the 100k US topo series to use with it. This model is very inconvenient because it only has 8 meg of memory for map data. Newer models are much better.

If I was going to buy a new GPS and did not already own one, I would give very serious consideration to the Garmin 62S and separate 100k topo maps. I was sure that the 62S was on sale right now at REI but I just checked their website and it is not listed anymore. Perhaps they ran out of them? (I looked at it in the store for a half hour this past weekend.) I would get the 100k US topo separate instead of buying the 62ST because I might want to be able to move it to another GPS later instead of having it factory installed.

I would want to be able to use AA batteries, not a proprietary Lithium Ion battery. I use rechargeable AA batteries in a lot of my gear including my Garmins.

Why do I use both a computer and a GPS? Habit. I always have the computer on the bike but I do not always have the GPS on the bike.

I originally bought my first Garmin in 2001 when only Garmin, Magellan and Lorance were on the market. The Garmin had buttons on the sides and the others had buttons on the front. Since I bought that GPS for kayaking on Lake Superior and with a kayak you strap your GPS onto the deck with bunge cord, I wanted the buttons on the side where the bunge could not press any buttons.