Figures from this source
- ReportedSealed box secondary price, 14 March 2025 (release+0m)¥10,000
- ReportedSealed box secondary price, 10 April 2025 (release+1m)¥10,900
- ReportedSealed box secondary price, 4 July 2025 (release+4m)¥8,500
- ReportedSealed box secondary price, 1 September 2025 (release+6m)¥9,980
- ReportedSealed box secondary price, 6 March 2026 (release+12m)¥14,500
- EstimateSealed box decline from 2026 peak, April 2026 peak 26,000円 -> October 2026 18,500円