It took a while to notice, but these two models have a small typo under the horizontal stabilizer. The small "Boeing" mark under the tail misspelled. This is so small it is hard to read (I need my reading glasses on to see the issue), but it is the reason that these models are being sold at a steep discount. The manufacturer sold us all remaining stock and give us permission to discount as much as we want. So you save big on these models.