Maybe, but then again, loyalty cards with tiered rewards do that. Making customers do work to signal their price point does it (e.g. coupon clipping). Bundling

Maybe, but then again, loyalty cards with tiered rewards do that. Making customers do work to signal their price point does it (e.g. coupon clipping). Bundling can do it too. Essentially, sellers have to add complexity to keep the discrimination going. Meanwhile consumers have little supercomputers to help undo the complexity. Hence the arms race analogy.