You know I was wondering why New York didn't adopt the GhostBusters as Heros and have something for them such as making the firehouse a monument and keeping the sign on the firehouse and perhaps have something to remember them by such as making a marshmellow factory named Stay puff?

Are you talking about why those things didn't happen in real life? Or in the movie universe? Based on the idea of “leave the sign up”, I assume you mean in real life, since the sign did stay up in the movie universe when they were in business.

In real life:
- Not many movies have things like this happen, where they create monuments after movies or things like that. The firehouse is an actual operating firehouse, but they do have the sign from the 2nd movie hanging in their engine bay. As well, they've adapted the Ghostbusters logo into their house logo, and have it painted on the sidewalk in front of the house. You can also buy t-shirts and hats with this logo on them.
- It would be somewhat odd to take a movie created brand, like Stay Puft Marshmallows, and attempt to make it a real brand. This also doesn't happen.

In the movies:
- They were still in business, so they wouldn't really need to have the house (which is their office) be a monument.
- Stay Puft (it has a t on the end) was an actual company in the movies, so that marshmallow factory would exist somewhere. It wouldn't need to exist in the actual city.

Doctor Venkman;150845
- It would be somewhat odd to take a movie created brand, like Stay Puft Marshmallows, and attempt to make it a real brand. This also doesn't happen.

Except, of course, as a limited-edition tie-in product, as they did with Nite-Owl brand coffee when Watchmen came out.

i always wonderd why people in the ENTIRE ghostbuster universe (GB2,comics, EXB) refused to acknowlage that ghosts exist…A 100ft. marshmallow man terrorizes the city and the whole city doesnt bleive in ghosts. next slime covering the city and giant ghosts, the titanic, THE FUR COAT. i never why it was so hard for people to accept

Ectoman57;150852
i always wonderd why people in the ENTIRE ghostbuster universe (GB2,comics, EXB) refused to acknowlage that ghosts exist…A 100ft. marshmallow man terrorizes the city and the whole city doesnt bleive in ghosts. next slime covering the city and giant ghosts, the titanic, THE FUR COAT. i never why it was so hard for people to accept

I'm sure we'll have the same problem with Alien Nation actually happens in real life.

Well… Metropolis, Illinois is an exception to this rule:
http://en.wikipedia.org/wiki/Metropolis,_Illinois

ive been there twice and i can say I LOVE THIS TOWNNNNNNNNN

Ectoman57;150852
i always wonderd why people in the ENTIRE ghostbuster universe (GB2,comics, EXB) refused to acknowlage that ghosts exist…A 100ft. marshmallow man terrorizes the city and the whole city doesnt bleive in ghosts. next slime covering the city and giant ghosts, the titanic, THE FUR COAT. i never why it was so hard for people to accept

As the Seventh Doctor says, “Humans have an amazing talent for self-deception.”