It's better than the godawful balloons, but still kinda meh.

That looks shopped. I can tell because of the pixies, and having seen a few shops in my time.

I assumed it was a mock-up since the one-rail is in the exact same place as is everything else in the picture.

You know what happens when you assume, don't you?

Yeah I know...

As Sum E

I never understood that. But then, I was never very good at Calculus

That's from the Bad News Bears. It's like this:

Assume: makes an ASS/[out of]U/[&]ME

Uh... yeah, I knew that. It's an oldie. I was deflecting.

Neglected? You must not have heard about a little high velocity thrill ride called the Rocket Rods.

I thought perhaps the movie was before your time.

:D