When the Phoenix Suns and Robin Lopez were set to part ways in the summer of 2012, turning the starting center spot over to Marcin Gortat, the team executed a sign-and-trade to get Lopez a good salary ($5 million per year) on a new team while bringing back Wesley Johnson and a future first round pick.
That future first round pick was the prize of the trade, but the Suns were fortunate to get anything at all out of the deal since Lopez wanted to leave anyway and the Suns would not have matched an offer.