I'm still using the GPS I bought in 2008.
I have 'never' updated it on line. And It works just fine.
The GPS itself, while driving down the road, corrects when roads have been moved or new ones added. I have never had a need to update it.
I used the computer just to recharge the battery once the week after I bought it and it changed a bunch of stuff on my menu.:(
I have not ever plugged it back into the computer since them.
IMHO I think that whole map update stuff is just to get you to connect on line and give them your info.
I have a very old, never been updated, virgin TomTom that still gets me where I want to go.:B
I full time with it.