Festool Domino Anniversary Edition - $180 cheaper?

[https://www.toolnut.com/festool-578243-limited-edition-100-year-df-500-q-set-domino-joiner-set.html](https://www.toolnut.com/festool-578243-limited-edition-100-year-df-500-q-set-domino-joiner-set.html)

What am I missing? This is a special "Anniversary Edition" and its cheaper than the regular DF 500 Domino at $1099. Which is not far off from some of the USED ones on Ebay and FB Marketplace. Might finally pull the trigger at this price. Thoughts?