Plugin prices

I'm pretty new to AE and I know tons of people use plugins like Twixtor and Sapphire, but holy crap are they really that expensive? Like I know I probably sound silly, and maybe 300 is a reasonable price for Twixtor, but am I missing something? How do you guys afford this?

Edit: Sapphire prices are 40 bucks a month. Are you guys rich? Or am I just looking at the wrong stuff?