Years ago I stopped by a shop near where I lived and in the case they had a Gen 1 17L with the original solid barrel, a ported Glock barrel, both in the Tupperware box, and a complete G17 upper. As I recall they were $550. Glock said the 17L was one of the first 1000 imported into the US.

I sold the G17 upper for $200 to a friend that wanted to convert a G22 to 9mm.

Fast forward several years where I put the 17L, extra barrel, and box on consignment at another shop. The owner thought someone would bite if it was priced at $750. It sat there.

A few months later they bought back a gently used M&P .40 Pro Series. (Original owner didn't like the recoil.) I asked the dealer if they'd trade the G17L for the M&P straight across and they said, "Yup." I believe they dropped the price on the 17L and it finally sold.