Caty! IMHO, but Nuvi 2x5 is the legend.
Why? This was the first Garmin series for affordable price (Nuvi7x5 is perfect but it is relatively expensive).
And so on... Full language support (Unicode), super fast a map drawing, a searching and a routing with multiply via point, rugged body (a little of scotch tape and rubber gasket make Zumo from it), photo comment for points, QWERTY. I see no new feature in all new devices except predicative searching and searching near the recent. nuvi1xxx with pop-up window for point seemed test for sharpshooters after 2x5 with understandable and adequate response of screen - this was the beginning of death of Garmin.
More than half of Nuvi that we have it is 2x5. In these latter days when there are not this device on wholesale stock we order everybody only one souvenir - Nuvi2x5.
From here there are a huge quantity of dead device. We know all temptation here. Modding to asian modifications or 465 modification at first. The second, after Garmin attach ecoRoute since 5.10 FW there were bugs with routing for all route preferences. The third, Garmin became the big corporation and its service became worldwide for this reason. We are a little have grown insolent due to that event - we loaded test SW on the parking lot of a store directly from notebook and we returned Nuvi back immediately if something was wrong.
The moral of the fable. I know why I liked Garmin but I am know why I love Garmin now. Probably a matter is in a habit...