5% market price cash, 10% market price in store credit, and they sell them at 500% market price.
Well, that and the time to be played more than once as far as the speed of older formats is concerned
Then the +1/+1 countering can really work nicely in a deck that goes wide like aggro and tokens and counters matter
It can be compared to Blood Artist, but in this case you don't need any additional sacrifice mechanics
If there were any lands that were also artifacts before the abilitys effect applied to them, those lands would become artifact land creatures, not just "creatures," or land creatures. The effect allows them to retain both the card type artifact" and the card type land. In addition, each land affected by the ability retains any land types and supertypes it had before the ability took effect
When it comes to 60-card formats and Commander, there are only two cards in the set that see significant play High Tide and Hymn to Tourach