I think the high price is due to lack of interest beyond scott cawthon inspired or just general fnaf fangame creation. But I also think the ease of use compared to the learning curve of other professional game engines is also part of it. Ease of use + what you can do + how easy it is to build = $99 usd minimum at a max of $500 + Expensive DLC (please use our deceptively marketed free version to ensure it runs on your pc). I don't hate clickteam, I actually love everything about it, and am hoping it goes on sale this spring or summer so I can actually get my hands on it for less than a shelf.