First off, an ETB costs around $72, and the top hit (Greninja ex SIR) goes for about $337
View as Gallery View as List UR Ultra Rare SR Super Rare SR Super Rare C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common Grapha, Dragon Lord of Dark World X DARK Level 8 [ FiendEffect ] ATK 2700 DEF 1800 You can Special Summon this card (from your GY) by returning 1 "Dark World" monster you control to the hand, except "Grapha, Dragon Lord of Dark World"
On top of that, you could play Scrooge McDuck Resourceful Miser without using any of your Ink
All of those things aren't going to happen altogether every time, but you only have to combine the effects of two or three cards to get a lot of value from your turns
2010 Pokemon Card Game Resurrected Legends 024/080 Espeon BGS Black Label Pristine 10 Another high-value item sold was a rare Espeon card, which fetched a price of $2,375, or approximately 350,000 Japanese yen
They only take them back if they're still sealed in their original package
