What's the difference between Garmin Oregon 550 and 550t?

I found 550t is about $100 more expensive than 550.
Asked Nov 22, 2009
The only deference is that 550t has a preloaded topographic street map for certain region (like North America), the 550 only has a world base map, so you'll need to buy additional maps.
Answered Nov 22, 2009

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