The "original slasher movie" Halloween was made for the low low price of just $300,000 way back in 1978. It introduced the world to Michael Myers, and gave a movie series that has (blog post) continued to this day. You (blog) know, if you wave away the fact that the 2018 movie is going to ignore the events of almost the entire franchise.. (blog post) except this one.
Source: Halloween Movie Review - Decker Shado