It is! And for most games i would never consider it. Poe is different though, it gave me a lot of special moments and memories that I never felt in other games.
I played for around 5000 hours since 2014 and payed 122€ which I find very fair considering I wouldn't need to invest more for the next years to come. I have every stash tab and enough space that I would ever need.
So 30 bucks feels alright for a teaser into a game that I might be able to play for another 20 years.
I don't understand why people have to watch those ads. It's one websearch that will save you a lot of time.
I use Mozilla for desktop and brave for Android to listen to videos while the screen is off.