Most models are discontinued the day you see them in the store. Here's how most of the industry works.

A model is created and the production order is made. The "lot" (even if the base unit of a CTO) is made, put into the container and shipped out. NEVER TO BE PRODUCED AGAIN.

Dell is a little different with CTO (configure to order) and HP has chased CTO for years but once the stock is gone, it's over.

Nothing new here but some consumers are dazed when they learn how this works even when they buy cars that are discontinued year after year!
Bob