Hi,
I'd just like to point out that your website lists the GA30 GPS Antenna as an accessory for the GPS 72H however there is no ports for the antenna to plug into on the current model.
https://buy.garmin.com/shop/shop.do?cID=145&pID=38309
I discussed this with a customer service rep a while ago but the problem hasn't been fixed. I purchased one recently and was surprised when i saw no antenna port (fortunately I didn't buy the antenna at the same time). While the GPS is still useful to me it isn't ideal. I would recommend updating the page to reflect the abilities of the GPS so other buyers don't find themselves with this problem.
Thanks.