Why is Pokemon Skyridge so expensive? Extreme Rarity This is one of the main reasons these packs are so valuable. As mentioned above, because the release of these packs came in 2003, 1999 Pokemon TCG Vintage Booster Pack Base Set, Aquapolis, Skyridge, Neo Series Sealed Skyridge. My favourite booster set. : r PokeInvesting SEALED Skyridge Booster Pack Art Set WOTC Pokmon TCG Heavy?? for Sale in Newport Beach, CA OfferUp PSA Set Registry: Collecting the 2003 Pokmon Skyridge Set, A High Flying Pokmon Issue PSA Set Registry: Collecting the 2003 Pokmon Skyridge Set, A High Flying Pokmon Issue