That last one is a pretty good pitch. Did he tell you how much he paid to get rid of it?
Sometimes that's all done by a management company....WVO collection is a part of the package. I would imagine another option would be to pay something for it, however, if you can find it for free even better.

yah, I've never paid anything for it. where I'm from the business has to pay to get it picked up. and it's by weight or frequency. So the less they have, the less they need picked up, the more they save. there is one place I take all of it (not much) so they're happy to not need to pay to have it taken.

I'm guessing you trade it for run-ready BIO-Diesel?
Maybe your deal is so many gallons of WVO for so many gallons usable fuel?

nah, home-brew. I just collect it, and process it.