Before jumping on the TomTom GPS ...anyone with an iPhone can get the same features for $50. in the app.
It's brilliant - includes free map updates for North America. Winding Roads is just too much fun.
It does allow no freeways and while it does say it will avoid gravel it's not perfect in that regard.....which is not a big deal on the Vstrom.
Kid and I have discovered many super roads that would be hard to locate on a map without a lot of work.
Then when you get tired of the byways just switch the route type to fastest and away you go. It's the element of surprise that I like.
https://itunes.apple.com/ca/app/tomtom-u.s.-canada/id326075661?mt=8
Tunes, Audible books, my email, phone when in range and voice to Nav all in one device and all working together.
BTW a used iPhone 4 or 4s costs about $100 and you do not need any sort of a data plan or phone service to use it as a standalone GPS and you have a pretty solid choice of apps.
I use an Xram mount for it and a ziplock if it rains. Been using an iPhone for about 3 years now and the apps get better and better.
Can't see any reason to buy a dedicated GPS.
The trouble with paper maps ( my girl friend loves them ).....you have to know where you are first
Winding Roads snagged some gorgeous byways in Virginia last year and I did not have to identify any of them.
Unfortunately the Winding Roads is only on the iPhone....the Android version does not support it.