I am, however I can see the possible advantages of having one for trips overseas.
Trippy, the advantages are much more than possibilities.
Get yourself a 2610/Nav II.
They are popping-up for sale in the price-range you mention. They will do everything you might want.
It's all been said before but here's a summary of the benefits as far as I'm concerned:
You can ride into the centre of an unfamiliar city with the confidence that the device will lead you back out to your next destination without the usual going around in circles, trying to read direction signs, strange road layouts while all the time watching-out for mad local drivers
It will give you realistic ETA's, both on the road and when planning (if you let the unit simulate the route). The latter is handy when thinking about ferry crossings or just wondering how long you need to allow for a particular leg of your journey.
If you find somewhere nice on a journey that you'd like to return to (if there's no time at the present), no need to try an memorize place names etc., just waypoint it for the future.
If you fancy exploring an area but don't know what sort of roads there are, the mapping will give you a good idea before you get there.
It doesn't replace 'proper' maps. It's an add-on but you will need fewer maps and can stick to large scale ones, leaving the detailed mapping to Mapsource.
Personally, one of the things I find really useful is when researching stuff.
For example, a small group of us are doing a short WWI tour later this year. I thought the 1915 battle of Neuve-Chapelle was worth a look at (the battle took place in a relatively confined area).
Looking at maps of the battle and Mapsource, it's possible to see that much of the features remain.
As you can see, Rue des Chevaux is what was once called Sunken Lane by the British.
Some users like to input complete routes, personally I like to find places I want to see (or in the case of above, some features) and waypoint them. Then I can select the route I want according to how much time is available or the conditions etc.
Something overlooked is the facility to convert the speedometer to kph. Handy for avoiding foreign on the spot fines.
There are a lot more uses for a satnav than the "take me to" function.
