this is more or less the practice used at gas stations that offer different prices for cash and credit (framed as a "cash discount"); also, not dissimilar to th

this is more or less the practice used at gas stations that offer different prices for cash and credit (framed as a "cash discount"); also, not dissimilar to the debate over employer/insurer "wellness plans", wherein the employee is forced to choose between surrendering private information or paying premiums that are often 2-4x+ more than what those who participate in the plan pay.