That's a fair point, and relevant to this side of the Pacific considering that the light novels are coming out in English soon. I think they ought to take a shot at making more. At the least though, AFAIK anime doesn't go into reruns all that often, so maybe a rebroadcast would be a good sign even though it's a disappointment. One series that comes to mind that reran was Fullmetal Alchemist I think, and obviously that came back strong with the movie and the new series coming up.
If not this spring, then probably in the fall I'll bet.