A word of warning.
I got my nuvi thru west marine in a similar fashion.
They called another store that had one "in stock"
and had it sent to my local store.
When I got the GPS I found a few waypoints on it at the store it came from and around the area of the store.
When I brought this to the attention of my store and questioned if it was a floor demo I was told no and it must have breifly been shown to someone.
I dug a bit online and found about a hidden screen that shows total operating hours and found the unit had over 1000 hrs on it.
Clearly a floor demo.
When confronted with that data they did contact Garmin and got me what I think is a new unit.