Which Porygon Unlimited do you have?
Same name, 9× the price: $2.29 to $20 raw. The difference is printed on the card — it is just not somewhere most people think to look.
Bandit Ring · #64
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$20
86% gem
The Town on No Map · #59
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$15
55% gem
Flight of Legends · #73
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$6.95
25% gem
Holon Research Tower · #62
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$2.99
47% gem
Clash at the Summit · #65
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$2.49
no PSA data
Megalo Cannon · #59
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$2.49
50% gem
Golden Sky, Silvery Ocean · #80
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$2.29
83% gem
We have no hand-checked note for these printings yet, so the guidance above is the general rule rather than something specific to this card.
Prices are raw market value. Click a printing for its full grading verdict — the gem rate, the fees and whether it beats selling raw.