I will be in Tuscany italy for a week and would like to purchase a GPS for this trip. I have been looking at the Garmin 2555 LM sold by Costco and also the Tom Tom 910 EU. I know the Tom Tom comes with maps of Europe including Italy whereas with the Garmin I would have to purchase the Italy maps. I would like to get a GPS that I can use when I am back in the US. The advantage with the Garmin is it is a newer unit and comes with life time map upgrades. I would like to pay no more than $185 to $200. Any suggestion.