I want to get one. I drive/ride to a lot of different places for work and yes, getting to a town with a map is easy, but what is difficult/impractical is finding the street you need once you're there. Multimap directions (and even several various level of zoom maps printed out from there) aren't really that good. Even in London, I've found an A-Z works quite well, but if I bought an A-Z for the 100+ different areas I go to, it'd pay for a GPS. If I get one, it'll be a bike one that you can get a car mounting kit for. I'm quite tempted by one of those hand held ones that just act as a GPS and point a direction arrow at your target rather than calculating the route(GTA, eat your heart out) but they've not really come down as much in price as you'd hope. Probably due to their popularity with hikers.
Yep, getting lost on a weekend bimble in beautiful scenery is great fun and a good way of discovering good roads. Rushing through an unfamiliar city with little/no idea of where you're heading on a Monday morning when you're late for a job is both stressful and dangerous. I'm also fed up of spending as much as 40 minutes of an evening trying to find my hotel
