Welcome to the world of digital media.
Personally, I never buy anything at "retail" price, ever. I learned from the world of PC gaming and the digital market there, that everything always goes on sale eventually, and that this is why we have wish lists. You may have to wait for several months, maybe several years, but it will become either free or nearly free if you wait long enough.
And while I wait, I read the free ones in my TBR pile to pass the time.