question about vacuume sealers

[Jedburton]

I just picked up a vacuum sealer from costco for 99 bucks It came with some canisters and 2 rolls of bag material and a dispenser for the material. The question I have is this, am I waisting my money or are these things really worth it for packaging baite, food, etc. My main use for it will be for baite, but of course my wife will use it for other uses. Secondly does it make that much difference on how well the baite keeps without loosing it's "fresh" apeal for fish?
jed
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