... because it's high-quality film editing software, and that is a reasonable and common price for such a tool? that's the upgrade price, it's probably going to be higher for a fresh buy.
FL Studios is a 99$ investment and turns back thousands of dollars in profit.
Sony Vegas is a 200$ investment and turns back a hundred or two from editing oddjobs.
I would never invest in an editing software even if i was stuck in the desert and an old man was offering me water for video edits