Sealed product detail pages show a Cardmarket (EU) stat next to MSRP when we have Cardmarket data for that product. The price is in EUR and shows the 30-day Cardmarket average, with a USD equivalent below (computed at the ECB-published daily rate).
EU sealed prices often diverge from US prices significantly — EU collectors sometimes pay 20-30% more for the same product because it's harder to source in Europe. The dual display lets you arbitrage if you're shipping internationally.