Kettle-style Popcorn Carts - are they worth it?

[FREYMAX 3D]

I'm trying to find some home theater owners who currently own or previously owned a full-sized Kettle-style popcorn maker/cart. I was considering purchasing one of these for my home theater, since I have guests regularly visiting my theater - but I have all sorts of questions going through my head about whether I would actually get my money's worth out of using one...

SO, do you get a lot of good use out of your popcorn cart, or in reality, are they too much hassle to use, a pain to clean-up, what about any popcorn/oil smell in the room where it is kept (even after cleaning), any other drawbacks or benefits? I'm afraid to sink a lot of money into one and then find out most people who buy one use it a few times, find it's too much work, and get rid of it right away, or just let it sit there unused as an expensive decoration...