The phrase is accurate; you shouldn't use it where you are alleged to only use a proper sentence, but that doesn't produce a phrase not correct. 'The popcorn comes at a cost', 'The popcorn isn't free', 'The popcorn cost $ten', 'You will need to pay for the popcorn' or, basically, https://andrezhnsw.spintheblog.com/37120462/indicators-on-governor-of-poker-online-you-should-know