I have an old Nav 3 on my ‘09 R1200GSA that is in need of replacing. I have been looking at getting a good used Nav 5 but ran across the Nuviz the other day. So my question is this, if I am going to spend between $600-800 on a GPS which way do I go? I typically only travel on my 1200, but I have an older 1100 that I still ride quite a bit and can take on trips if needed. So, something that I can easily transfer between bikes would be nice. The Nav 3 still works but the screen is hard for my aging eyes to pick up well. Any thoughts here?