A diner choosing a wine will most likely eschew the lowest price option, and obviously the highest price option will be out of most people’s reach, but customers will “spring” for the mid priced option.
https://en.wikipedia.org/wiki/Loss_leader
A retail shop will put TVs on sale for 50% off but only keep 5 in stock. They advertise it everywhere, 100 people show up looking for cheap TVs, find it's out-of-stock and buy one of the expensive ones that are only 5-10% off.
A loss leader might be Costco hot dogs or cheap razor handle for which replacement cartridges are the true profit centre
[0]: https://portal.ct.gov/DCP/Common-Elements/Consumer-Facts-and... https://consumered.georgia.gov/ask-ed/2015-09-08/do-stores-h... http://www.ossh.com/firearms/caag.state.ca.us/consumers/gene...
20 years ago, Computers were perennially loss leaders at a best buy I worked at. We sold you $2000 computer at a small loss, hoping you'd buy printer paper and cartridges and cables and warsanty.printers are still notorious loss leaders of course.