Make sure you'll really use it. I love the popcorn from my popcorn machine. IMHO, it's so much better than microwave popcorn. I bought a case of popcorn that I really enjoy. I bought the little popcorn boxes. I didn't mind spending the money on the machine or supplies. My problem is that I got tired of cleaning the machine. We watch movies at night. Obviously, you want to make the popcorn so you have it right before the movie starts. Then you watch the movie, and then at 11 pm, midnight or 1 am, the movie is over and you're ready for bed. Do you want to clean the machine then? No, I'll do it in the morning. Well, I'll do it after I get the yardwork done. Since we're going to watch another movie tonight, I'll clean it tomorrow morning. And on weeknights, you're not going to clean it the next morning before work, and when you get home from work, you're tired.
My popper gets used primarily when we have company over to watch a movie, and that's not very ofter.
Put me back in time before I bought my popper, and I'd still buy it. But before YOU buy one, think about exactly when you'll clean it and how often you'll be entertaining.
BTW, it's great to have for our kids' birthday parties.