I am looking a slightly used 2019 Silverado 2500 SLT with durmax diesel, Z71 offroad package, heated cooled seats. Its basically a high country with the options added to the SLT package. MSRP was 69,090 they are asking 57,000. It has 9,000 miles on it. Seems high to me given that we are only looking at 12,000 under sticker price and it has 9,000 miles on it. Thoughts?