Which should I buy?

I have a $25 visa gift card to use anywhere and I wanted to buy some of eyein12's content, so I wanted to know what to buy.
What I had in mind:
EMD SD60
or EMD SD80/90
Or does he ever have sales from time to time?
What I had in mind:
EMD SD60
or EMD SD80/90
Or does he ever have sales from time to time?