You don’t say what kind of part(s) you need, but any time I am considering buying used parts from a junkyard, I look up the price of a new aftermarket version from Rock Auto and compare that to the junkyard’s price list posted online. More often than not, the junkyard charges 60% or more of the Rock Auto price, which means that buying the used part simply does not make sense.
The local “you pull it” yard has become so grossly overpriced that it is often cheaper to buy a part online from a different junkyard which sells online (for example on Ebay) even including the shipping. As long as the seller posts plenty of pictures of the actual item for sale, it is possible to save a lot of money–as well as time–by buying used car parts online.