II.in [am. angl. ɪn, brit. angl. ɪn]PRISL.in often appears as the second element of certain verb structures in English (close in, hand in, stand in, etc). For translations, see the relevant verb entry (close, hand, stand, etc).
Variations in price between trade-in services and products depend on timing (release of new models and market fluctuations), the model being sold, and the product's condition.