We got ourselves a FoodSaver as an early Christmas present ... and we really do like it.
The bags are pricey, though, so I liked one suggestion that I saw. The person said that they make their bags a few inches LONGER than what they need, fold the excess underneath and out of the way, then re-use the bags for smaller and smaller items over time. That makes sense to me.
I'm also tempted to see if there's not some way that the triggering device for the sealer to be activated without having to put so much of the bag into the machine. Call me a cynic, but there sure seems to be a lot of wasted material left out past where the seal takes place ... and who could imagine a big company designing a machine so that people will have to use as much of (their) supplies for that machine as possible? Surely not in modern America, right? (Oh ... the thing's probably made in China ... foolish me.)
While it does a great job sealing up things like dried beans, I'm not inclined to spend the money on bags for that (unless I'm packing them to take camping, or something of that sort). Dried beans shouldn't need to be vacuum sealed unless someone's preparing them for their doomsday shelter. Storage in something like a Rubbermaid container--one that seals tightly--is probably just as good and more cost effective over time. Maybe that's not the best idea if you live in a really humid environment, but I suspect that most of us aren't in the tropics. Just one opinion, of course!
As for sealing up stuff that's moist, but not liquid (like meats), we use the type of paper towels that allow you to tear off a small sheet, fold it up into a strip about the width of the bag, then put that in after we put in the meat. When moisture is sucked away from the meat it hits the paper towel barrier and is absorbed. Never had a problem with sealing ... yet ... from moisture, and we've bagged up a whole lot of chicken for the freezer.