Do You Have Or Use a Foodsaver?

I've been looking at maybe purchasing a FoodSaver.  I think they run about $70 at at Target, and now, Redplum has a $10 off any FoodSaver Vacuum Sealing System coupon available. 

It's not so much the price of the machine that has stopped me from purchasing one, but the price of the bags.

Does anyone have a FoodSaver?  Are they worth the money?  Which model should I purchase if I do buy one?

Help!