Well, thought I would come back here and add a few cents to this wonderful discussion. I did some research into a stand along GPS for myself and my mom, and I found out something interesting about the TomTom's.

1. They have poor reliability. Their devices have a bad habit of going bad pretty quickly.
2. They're about 3 years beyond everyone else technology wise.
3. They nickel and dime you to death.
4. Their warranty and RMA system is a complete nightmare.
5. Their GPS chip sucks.
6. They're one of the lowest rated, and worst reviewed GPS devices out there.

Need I add more? They in general just suck. Just thought I'd share this so nobody else gets burned.

EDIT: Opps, I wrote Garmin, but I meant TomTom. ^_^;; My bad. Garmin's are actually extremely good.