I’m interested in getting a GPS unit for my girlfriend. One of our worries is outdated maps and I’d like to find one with map updates you can download for free.
Bonus points if anyone can help steer me towards a good one in the sub $200 price range.

We have a 2 year old Garmin c340 GPS that does not recognize routing to destinations using ferry services. This tends to send us many miles and hours out of our way if we don’t quickly realize the problem and adjust for it. Our newer Garmin Nuvi unit does recognize ferry service but the older c340 does not. Is there any way to upgrade the older Garmin c340 so that it will recognize ferry routings?