Sales take place at night in the pavilion
Sales take place at night in the pavilion, from a sawdust-strewn block, under the light of torches, but girls may also be sold directly from the platforms. Indeed, many girls are sold from the platforms. Given the number of girls at the fair, and the fact that new ones are constantly being brought to the platforms, it is impractical to hope to market them all from the block. It is just not feasible. At the end of every fair there are always some hundreds of girls left unsold. These are usually sold in groups at wholesale prices in sales restricted to professional slavers, who will transport them to other markets, to dispose of them there.
Beasts of Gor, p. 87