mtg-sealed-price-checklisted

# MTG Sealed Price Check (Argentina vs US) Compares Argentine retailer pricing against the current US market to determine if a sealed product is a good deal, average, or overpriced. ## When to use - User pastes a price list from a Buenos Aires MTG store - User asks "is X price good for Y product?" - User is deciding between multiple stores for the same sealed product ## Constants and assumptions - **Exchange rate**: ALWAYS ask the user for the current ARS/USD rate — Argentine peso moves weekly, never assume from memory - **Acceptable Argentine markup**: +0-30% above US is fair, +30-50% is typical, +50%+ is overpriced - **Cash/bank transfer discounts**: typically 5-15% off list price — always factor these in ## US reference price sources (verify each, don't trust memory) | Source | URL pattern | Use case | |--------|------------|----------| | **Manapool** | `https://manapool.com/sealed/<set>/<product>` | Often best for current market price | | **TCGPlayer** | `https://www.tcgplayer.com/product/<id>/...` | Authoritative US market | | **MTGGoldfish** | `https://www.mtggoldfish.com/price/<set>/<product>-sealed` | Price history graphs | | **PriceCharting** | `https://www.pricecharting.com/game/magic-<set>/booster-box-collector` | Charts and trends | | **Card Kingdom** | `https://www.cardkingdom.com/mtg-sealed/<product>` | Usually marked up vs market | ## Critical rule **NEVER invent or recite US reference prices from memory.** Always verify via WebSearch or WebFetch before s