Well, space is something else that is at a premium in a city... I have two 5.5cu-ft freezers for storing bulk stuff that I see cheap on sale... have fun with that in an apartment. And especially if you are doing soups and other liquids, you really kinda want a chamber vacuum sealer, which is a big dealie that sits on your counter with a 1/4hp motor. Even keeping the sealing area very clean (wiping down the foam seals and electric seal strip regularly, etc) I cannot get one of the cheap vac-u-saver vacuum-pump machines to last more than a year, after that the seals on the packets start getting marginal and they leak air and eventually ruin the food. Someone in a new york apartment doesn't have space for 2 cubic feet of vacuum sealer and 15 cubic feet of freezers.

(do you need the chamber sealer, no, but they do a much better job, if you're doing tons of bulk food prep and sealing they're really a nice tool for it.)