I don't really care for this album. And most single LP albums go anywhere between 12 and 20 dollars. Rather use the 20 dollars on buying the Vheissu 2xLP reissue next week or the 15 dollars on the new Daytrader LP.
Like you said, $20. Upper-end of average, but still average. And you'll always pay more for 180-gram. But I'll be all over that Vheissu repress too. Hopefully it's slightly better quality than the AITA repress.
It really depends on the artist, press quality, packaging, run, etc. You're talking middle of the road vinyl; this pressing is just slightly north of that, and you can't fault them for charging more on 180-gram.