Where it comes from
Japanese-language document, 2025 Pokémon Card Game official site (TPC) · 18 April 2025 Open the original ↗
The line in the source
拡張パック「ロケット団の栄光」…30パック In English
Attaché case set with 30 packs, 14,900 yen; 30 packs at 180 = 5,400 so set carries a ~2.76x premium with case