Dtank - in my case you don't know what you are talking about.....1.)I had to replace the tires because I had one blow out sitting in my driveway and I could not risk a blowout while traveling from MD to Ohio....the damage would have killed the deal and who know what would have happened as far as an accident goes.
2.) This specific dealer DID reduce their original offer to a friend of mine when they inspected his rig when he got there...he had to re-negotiate - as it was he still lost $1700, down from over $3K they wanted to reduce it by.
I will agree, they probably kept my new tires for another rig.