Went down to my local West Marine and bought a new Garmin 76cx for $149.
It does not have a 128meg memory card in it like the box says. It has 1 Gig.
They have a 30 day return policy.
The web site shows a 2 year warranty for I think it was $29 and a 3 year for $39.
In the store they offer a 3 year warranty for $23.
Brought it home stuck the batteries in and it works fine. Plenty of sat reception from inside my house.
Check West Marine out. It looks to be a good deal when used ones are selling for $130 - $180 on flea bay.
My wife's unit goes 16hrs. with recharge batt. OMM. That's running with back light.This 2 day sale is over. Garmin 76cx
It will be interesting to watch the best prices for these between now and early January 2012.
BTW - I put 2 new AA batteries in it left in on. Used it good part of Saturday. Left it on overnight and rode with it good part of Sunday.
At 30 hrs I got the low battery warning!