Well, if they simulate a movie theater and you burn some extra money to simulate the price of snacks you can almost have the entire theater experience without the risk of being shot by some nutjob
I know you're probably being sarcastic, but that's probably only true if you're a female in an abusive relationship, or particularly if you're a male with suicidal tendencies.
People spend far more time at home than the movies which increases the statistical chance of dying from a gun at home compared to elsewhere. The user was showing that comparing what is more or less likely is usually very irrelevant because the statistics are often misleading. Ignoring "time spent somewhere" makes home one of the most deadly places to be.