had the streetpilot, loved it, but it was heavy and would fall off the window alot. got a nuvi for xmas, love the smaller size, but it gets less reception than the streetpilot. also it gets confused sometimes, the streetpilot didnt. but it also never falls off the window. nuvi is better for that reason IMO. either way, they pay for themselves. if your broke down, it has phone numbers for wreckers, hotels, etc. indespenable on road trips.