Dramatically-dropping cost is perhaps the biggest driver of GPS popularity since you can now buy one for $149 US, although low-end models are hard to recommend. In GPS Land, three companies dominate sales-and no, Sony, Samsung and Panasonic are not among them. Garmin, TomTom and Magellan own 80 percent of the market while others like Navigon are trying to claw their way into the top ranks. That said, we recently were sent the Navigon 2100 Max off to our testing labs to determine if it deserves to be considered a top-tier unit. Now let's take a drive.
