Good plan.... and anyone with an OEM or functional nav card really needs to invest $10 to create a copy of it and keep it tucked away as your backup plan if one fails. I have my OEM card, and two copies. Each time an update gets released, I update all three. The OEM gets tucked away in my study. One copy goes in the nav card slot in the car, and the other copy sits in the bottom of the centre console. So even if I experience a card failure when on a road trip, I've got a backup ready to pop in. It's the best and least expensive option to cover your bases. And as @Arthur noted, buying the 3 year update package is the best value proposition for ongoing content.