Per Kuhlwein,

500 x 380 = 190,000 not 19,000...... Which would be awesome indeed!!!

I've haven't had a chance to see a 210 yet but going by the specs, it seems to be an amazing unit for around 140 bucks and comes with cable and 20 MEGS of memory.

The geocaching forum is probably far and away the best source of information on GPS units. Those guys eat and sleep with their GPS units.

http://forums.groundspeak.com/gc/

I going to link your question to their forum and see what they have to say.