Maybe this will help you. I just shopped for a vacumm sealer. What it boiled down to was basically three flavors.
1. Food saver its fine for around the house, left overs, and some processing.
2. Intermediate vacumm sealer, everything in #1 plus more abundant processing and usage.
http://www.smokingmeatforums.com/t/242342/vac-master-pro-350-foamheart
3. Chamber Sealer Notedly better for heavy use as well as liquids. I believe the bags are less expensive.
http://www.smokingmeatforums.com/t/127567/review-of-chamber-vacuum-sealer-vacmaster-vp112
My suggestion to you is drop a dime and call Lisa. Who's Lisa? Not only a site sponsor but a really nice person. She'll help you get what you need, instead of what you think you need.
http://www.smokingmeatforums.com/t/124305/vacuum-sealing-discount-for-all-members/80#post_1545716
The company site so you can look at whats out there.
https://www.vacuumsealersunlimited.com/
The above is just my opinions, others obviously will vary.