The holofoil style of Gengar ex increases the value but also makes it more difficult to grade
While it does increase the resale value, especially for higher grades with modern cards, its great for encasing your card in a hard, protective shell - and for vintage cards, its important for verification
Instead, it's the fact that it allows the player to draw two cards when an equipped creature dies that pushes it over the top The potential card advantage is unreasonable for a single mana investment, especially since the -1 to Toughness makes it extremely easy for the player to kill their own creatures on command
Having access to an additional play or two per turn helps you make important decisions and dictate the pace of play during the game
With the new text, the Recycle Energy gets stuck in the discard pile
As new sets like Pokmon 151 continue to blur the lines between art, nostalgia, and investment, being informed gives you a real edge in this fast-moving collectible market