It's time for me to pull the trigger on the purchase of a chamber vacuum sealer. I'd love to get a couple opinions on the ones all of you have purchased. For me, it's coming down to about four models. The VacMaster VP210, VP215, VP112, and the Minipack MVS31X. I'm leaning towards the VP210 or VP215. 1) For those of you with a VP112, do you ever wish you had a bigger unit? 2) Is the oil pump of the VP215 worth it for home use or would the VP210 work just as well for the light use it will get? 3) What's the advantage of stepping up to something more expensive like a Minipack or a similar chamber? Keep in mind, this is all for home use, primarily for sous vide and freezing meats and stocks. Thanks, Steve