Figures from this source
- EstimateSealed box secondary price, July 2024 (release+0m)¥6,500
- EstimateSealed box secondary price, August 2024 (release+1m)¥5,000
- EstimateSealed box secondary price, October 2024 (release+3m)¥4,000
- EstimateSealed box secondary price, January 2025 (release+6m)¥5,000
- EstimateSealed box secondary price, July 2025 (release+12m)¥6,000
- EstimateSealed box decline from 2026 peak, August 2026 peak 12,000円 -> October 2026 10,000円