Pay attention, to what is used as payment method for the items that interest you. Minimum bid is fixed and does not depend on the last bid. Time till the end of the trades is shown in the information about the lot, but it has special feature, trades end no sooner than 10 minutes after the last bet is made. If after the end of the main trade time 10 minutes passed after the last bet, the trade ends automatically. If your bet was surpassed - your funds will be returned back to you.