Casio fx-115ES

This was sitting there all alone on the shelf away from it's electronics brethren. Being the veteran thrifter  I am, I have been screwed before on these. I paid $3 one time for a T1-36x Solar .. which has a broken 9 button. The Casio was a true upgrade.

For the same price, I get 3 more working digits! Quite a bargain. And in fact it was able to tally up my big Astrocade score.