Not enough trees
Of all the implausible and ridiculous plot lines in this movie, and there were dozens, this was the worst. There weren't enough trees on that truck to fill the lot ONCE let alone please as many customers as they did to make over 20 grand. If there were enough trees, with as busy as it was on the 16th, it would have been empty within a very short period thereafter.
Given an average between the number of $50 and $200 trees on the lot, there would have been about 300 trees on that truck. Was it Narnia?!
I don't know why that bothered me so much, but it was like a bottomless cup of coffee. It's too much fantasy to make the rest of the depressing story palatable.