Just wanted to share our experience with ponchos last week.
Last Tuesday (March 16) was the first day we were spending at MK with DS7 and DD4. It rained. And rained. And rained some more. We were there for the opening, with our flimsy orange Coleman ponchos at the ready, and headed straight to Dumbo, just as we'd planned. Just closed due to lightning. I don't care to get struck by lightning, so OK by me. Meanwhile, it's pouring, so we head to the next (indoor) ride on our list. Nobody's in line--we end up riding it three times in a row with no wait longer than a minute. Go to our next ride on the list--and ride twice with 2-minute waits. All the time we're thinking, "this is great, but where *is* everybody?"
Once the lightning passes (but not the rain) and Dumbo reopens, we manage to ride once with a short wait before the line gets unmanageable. Meanwhile we've picked up Fastpasses for Philharmagic, so no wait there, either.
All this to say that I'm *so* glad we didn't duck into a store. Our ponchos (and our willingness to get a little wet) allowed us to do so much more, with so much less waiting, than we could have if we'd tried to wait it out with the crowds.
Just my experience--hope it helps--
Mary