It's a euros to dollars thing. It is $18 US here and $16 US on humble with discount. For one copy I wouldn't care, but was looking at getting multiple copies for my kids.
Guess this still isn't sorted out.
I'm a humble subscriber, so it is a bit cheaper to buy there, so I imagine that is why several of us would prefer there.
We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.