Explain"sellers are paid the AdX closing price, net of Google's revenue share, but 'll receive no less than the min CPM they specified for the auction"? I'm a 25-year-old who's got a vinyl record collection of between 3-5K records. I'm considering selling them, but the prices I'm being offered are below the market price and much less than what I paid for them. Should I sell them or put them in a storage and wait for them to increase in value over the years?