Most likely the LSOH Marketing team paid for so much time, and didn't want to pay anymore, or their contract was up. It's not personal... And since the space was available, the Wicked billboard went up. That's all! -david.
LSOH still has a pretty large banner in Times Square but WICKED is a much bigger show than Little Shop. You can see Little Shop at practically any high school in America.. it aint nothing new..