This paper examines lotteries and seniority queues as forms of commodi
ty bundling price discrimination. There are goad and bad seats, and tw
o types of potential purchasers. Offered the choice of a high-priced g
ood seat and a moderately-priced bundle of good and bad seats, custome
rs self-select into high and low valuation types. For single period pu
rchases, the bundle is a lottery over good and bad seats, For repeated
purchases, monopolists such as the Royal Opera House can do better by
setting up a seniority allocation system.