I have both the bottom and middle of the Foodsaver line. As cajun said, if you are doing alot, commercial is the way to go. The bottom of the line is not worth it IMO. I do pretty good with the middle of the line, it has a couple of knobs to extend sealing time, vacuum time, and a heat-seal-only button which is handy when you are making bags from a roll. It also has a vacuum tube port for a canning jar attachment which we've rarely used, a removable fluid tray which is really handy for cleaning, and a bag cutter which lasted about 20 cuts.
The ability to seal many bags without rest is the main factor.
Did you say woodcock or woodduck?