I agree to a point with Big B about Garmin and $$. The TT Rider lists for $400 and does not have an sd card slot and means no Topo maps. My G 2455 cost $99, has the card slot and so I can use the Garmin NW Topo 24K maps and the nat'l street map data set with Basecamp, a free Garmin app. I agree with Big B, if he so thinks, my G 2455 should not cost 10% of a top-of the-line Zumo. However, in the Nuvi line, due to competition, and everyman price points, G has lots of models, segmenting the market, and eveyman can buy cheap a Nuvi that will suit his needs. The N 2455 is more capable that the Rider for 25% of cost of the Rider, but however, the Rider says it is sunlight readable and it has color selection so it may use an LED full array RGB backlit display, which the Zumo certainly doesn't. Garmin, like Rolls Royce, rarely changes the high end Zumo because it doesn't have to as some will pay the $. So at the Nuvi level, Garmin has no peer on a feature/price basis, certainly not the Rider. And, Garmin has the world's finest tech support: I called a few times to get help with the 2455 and Basecamp and had to call again after I did the route because I could not find it in the device. Now, I am not arguing buying Tom Tom is a protest vote, at least not totally, not completely, and certainly not entirely because even though the G 2455 is more capable and I could buy four of the them for the cost of one Rider, the Rider is, they say, sunlight readable. Considering an LED RGB 4.3 in. display could never cost 4 times a CCFL LCD, I have to think the Rider's margin is high as hell, though not an outright rip off, which I might say about the Nuvi/Zumo price points. Finally for $89 from Wally there is a refurbished G Nuvi 1390LMT that is sunlight readable, supposedly, and it does routes with Basecamp. But hey, I get it. No matter what, I'll never buy a GM car: they "converted" gas engines to diesels in the late 70's and it's a clear case of never forget, never forgive.