I think the problem with this one was that there are too many locations and not enough shoppers. I can only eat so much of this stuff, before I don't want to do the shop, even though it was not too bad of a report.
I usually want variety, so I never went over reimbursement. A $60 meal for the time it took to write the report, sure. But a $35 meal for the same report, no thanks. Even a small fee would have encouraged me to pick up a few but the schedulers were reluctant.