Our car's navigation system has proven to be indispensable over the 4 years we've owned it. Like a lot of technology, once you have one, you don't know how you managed without it before. Be that as it may, it does have some limitations. The maps and business directory/points of interest are stored on a dvd, which needs to be replaced every so often to keep current. Roads don't change very often, but businesses do, making the circa fall 2003 database less than perfect. (Case in point - Radio Shack recently shuffled all of their local stores, closing some, relocating almost all others. This made finding a location a recent exercize in futility, as the navi directed me to three separate locations that were no longer there.)
Plus, some local roads have changed - the I-670 redesign was finished about 6 months after we got the car, so the current 315/670 routes aren't shown - the map shows us driving off the highway and apparently flying through the air to certain death - it would be cool if the car's voice would scream when that happens.
So, time to bite the bullet and get a new dvd. These cost a little more than, say a movie - the normal price is $185 for the annual updates. Theyr'e on sale for $149 right now, so i jumped. But I can't complain, as the navigation service is free, and $149 over 4 years is less than my train magazine subscription.
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