Hi, and welcome to eGullet, jduncan81. It's certainly a drag that you were getting the run around when you tried to call the company for information...that's not really how customer service is supposed to work, now is it? Anyway, the V2440 and 2840 are virtually the same machine, except that one is white and one is stainless. The Pro model looks to have a number of extra "features," though whether it makes for a better, longer lasting seal is a good question - lot more expensive, though, for the "pulse" feature and 5 "levels" of seal. I recently purchased the V2440, and have no complaints - works just as advertised. ← Thanks! I'd looked through the foodsaver website quite extensively and couldn't tell many differences between the 2440/2840 - it's good to know that they're practically the same!