Why is Apple still selling MacBook Pro 13 with Disc Drive 2012?

[GGD]

So they can offer a product for customers who want any of the following features.

Built in Ethernet port
Built in FireWire port
Built in Optical Drive
Upgradable Standard 2.5" SATA Drive
Upgradable RAM
Battery level LEDs.
Original MacSafe power connector
Price of $1099