Figures from this source
- EstimateSealed box secondary price, January 2025 (release+0m)¥21,950
- EstimateSealed box secondary price, February 2025 (release+1m)¥10,314
- EstimateSealed box secondary price, April 2025 (release+3m)¥9,000
- EstimateSealed box secondary price, July 2025 (release+6m)¥8,000
- EstimateSealed box secondary price, January 2026 (release+12m)¥9,500
- EstimateSealed box decline from 2026 peak, April 2026 peak 11,500円 -> October 2026 10,200円