Roger, keep us posted on your comparisons of the two systems. I currently have a Garmin Nuvi 760 the maps are out of date and the unit will no longer take a charge after only 13 months, talk about designed obsolescence. In a call to Garmin they would be happy to send me a refurbished unit for $99.00 as my unit is one month out of warranty. I'm happy with the operation of the unit but I'm looking for one where the company isn't so hard line on there policy.