I’m not sure the monetization scheme is any worse than Hearthstone, in fact I think it is better. The $20 entry fee does give you basic cards but also 10 booster packs, so it’s basically just asking users to commit to a minimum level of investment before they can play (which I still don’t understand the reason for, but whatever).
Both Artifact and Hearthstone make you buy more boosters to get more cards, but Hearthstone does give you in-game gold which you can use to make a booster pack every now and then. While Artifact does not have this, it does let you buy/sell cards on the marketplace, which in my opinion is a huge improvement.
If you want to play a certain deck in Hearthstone, you have to either buy a billion boosters to somehow find the legendaries necessary or craft the cards by throwing away many many legendaries that you already own. I abhor this system and it’s one of the reasons I stopped playing. In Artifact, if you want to play a certain deck you can just hop on the marketplace and buy the specific cards, the majority of which will be very cheap I am sure. The only potential problem is if some of the cards in Artifact go for lots of money on the marketplace, but Valve has mitigated this greatly by not having any rarity tiers above rare. Unlike Hearthstone, there is no epic or legendary cards.
Unless I have got something majorly wrong, I am quite confident (nothing is guaranteed until the market is operating) that you will be able to construct netdecks in Artifact much more cheaply than with Hearthstone.