Tarmogoyfs have been great and almost every time I'm happy to draw them if the board position doesn't need immediately an answer to something or combo to get the win home. Although they don't have EtB-abilities, they are big and can kill quite fast. Opponent have to think if they kill your tarmo or save the decay for your food chain. And importantly your tarmos block your opponent's tarmos. And if you have jitte in sideboard they are quite nasty against creature based decks (usually I side out a little bit of combo for example aethersnipe and griselbrand or manipulate fate). Then you still have the combo and you can survive from the swarm.
I'm also glad to have more threats if your food chain gets extirpated or surgical extractioned (happened couple of times on the draw if you have food chain in opening hand: discard + surgical). Also atleast one person has a couple of slaughter games in his nic fit-deck in our meta :/ Then you don't have to rely griffins plus couple of pingers. Maybe tarmogoyfs can be in sideboard and main would be more combo-oriented... hmmm hard decisions :D

