I don't know if $15.9K is fair or not as there is no way to see the truck and ask questions of the owner, look at maintenance receipts, etc. In general, LMM's are fairly trouble free. After you have followed this forum for several years, you will see fewer problems with LMM's than other editions. My 2008 truck is at about 165K miles, runs great, very reliable, but I do lots of maintenance to keep it in good shape. I would expect that a well maintained truck should run at least 350K miles. I looked at 2019's an saw too many problems so waited for 2020's, but again too many problems. Maybe some day the new models will be as realible as LMM's and I'll spend $80K or $90K to get a new one.