Recently in used car shopping i've found KBB only gets used when they are pricing trade ins but the cars for sale on the lot have been much higher than the book

Recently in used car shopping i've found KBB only gets used when they are pricing trade ins but the cars for sale on the lot have been much higher than the book value and they scoff when you ask them to come down to the KBB used car value that matches, no wonder so many car lots are closing shop.