If you have no business need for the tool, then it is presumably for hobby or entertainment use.

So it is comparable with entertainment products or other professional tools used by hobbyists.

$50 doesn't buy many hours of entertainment in movies. Video games are better value for money. Fishing rods, woodworking tools, knitting supplies. Compared to these things $50 seems like a low end expense.

What were you comparing it to?

Thanks, great comment. I have to admit I'm a bit disappointed when a small company brings out a great software product, and I find a topic with lots of complaints related to its price.