The comment about artists pricing as they like was not meant to be the main point of that reply, as you didn't say you've ever actually worked on anything avatar related to reply. But yeah- I'd love to see the sleugh of specifically $35-40 high quality avatars that make this one so overpriced. Everyone is obligated to their own opinions though, and everyone has different financial situations.
I think anyone into VR and buying more luxury products like VRC avatars should probably not be complaining about a ~$15-20 difference from other avatars. I know tons of $50-60+ avatars that people are content with and love and feel it's a fair price, it's unfair and pointless to call it out