In other situations a reverse type of strategy is sometimes used, where early buyers pay a lower price and later buyers have to pay more. Examples are the selling of tickets to certain events, like concerts, and the selling of certain types of club membership. Usually buying early involves more inconvenience or inflexibility for the buyer, thus segmenting the market.
Second-degree price discrimination often features a two-part tariff or pricing system. There is some lump sum charge and then a user charge. Examples are cellular phone and cable television providers, car rentals, and various types of club membership. In the first two cases the lump sum is minimal and the user fees relatively large; with cable for example, the boxes are heavily subsidized by the provider and are often supplied free of charge, but if a second box is required, the buyer has to pay around £300. This also explains the apparent anomaly that replacement blades for many razors cost more to buy than whole disposable razors. On the other hand, with many club memberships the lump sum charge, or entry fee, is relatively large, while user fees are nominal.