iPad 2 still available?

Why is the iPad 2 still available for purchase? It is an inferior device when compared to the iPad Mini yet sells for $70 more.

Purchasing an iPad 2 over an iPad Mini:

Pros:

1 - 1.8" more screen (not screen real estate)

Cons:

1 - Heavier

2 - Worse PPI

3 - Horrible rear camera

4 - No Facetime HD

5 - No Siri

6 - No lightning connector