It turns out all the best draw effects are used in very different ways by wildly differing decks that are trying to set up their own unique game states
It also plays particularly well in a Wilderness Reclamation strategy
Phantom Nishoba Loxodon Hierarch Nazahn, Revered Bladesmith Qasali Pridemage Saffi Eriksdotter Mystic Enforcer Knight of the Reliquary Fleetfoot Panther Gaddock Teeg Voice of Resurgence Rhys the Redeemed Tolsimir Wolfblood Wilt-Leaf Liege Sigarda, Host of Herons Sigarda, Heron's Grace Selvala, Explorer Returned Selesnya Guildmage Renegade Rallier Armada Wurm Captain Sisay Centaur Healer Dauntless Escort Dromoka, the Eternal Dragonlord Dromoka Enlisted Wurm Fleecemane Lion Karametra, God of Harvests Kitchen Finks Loxodon Smiter Mirri, Weatherlight Duelist Novablast Wurm Holy crap
Tinker is a mainstay of Vintage Cubes, restricted in 60-card Vintage, and basically unusable anywhere else
So, there are limits, hence probably why it was printed in a Standard-legal set
each artifact you tap after activating mana abilities pays for one generic mana