In one simple example, once you have Displacer Kitten and Goblin Glasswright on the battlefield together, you can tap a Mountain to cast Craft with Pride, blink Goblin Glasswright, use the Treasure to cast Craft with Pride, and repeat to cast infinite spells
Only 91 of those have been graded by the PSA, making it a notably difficult card to narrow down a value for
Chart shows the price of Electabuzz #33 at the end of each month going back as long as we have tracked the item.
They look essentially the same: Once you sleeve em up, things are good
2017-07-14 If the cost of an ability or an additional cost of a spell requires putting counters on an artifact, creature, enchantment, or land, that cost cant be paid
So, for them, they can have their own little business buying and selling that stuff