Ob Nixilis Ping - Grinding Station Question

For any Ob Nixilis player, how often are you winning off of grinding station? With Mana Crypt out of the loop I have been seeing grinding station just sit in my hand. Yes, it works with other artifacts but I am winning off of AWBO , Dualcaster Mage, even just straight Ob Nixilis damage more than grinding station. I am just getting input to see if other Throb Dixilis players are watching this card rot in their hand.