Figures from this source
- EstimateSealed box secondary price, December 2024 (release+0m)¥9,484
- EstimateSealed box secondary price, January 2025 (release+1m)¥11,878
- EstimateSealed box secondary price, March 2025 (release+3m)¥12,790
- EstimateSealed box secondary price, July 2025 (release+7m)¥10,800
- EstimateSealed box secondary price, December 2025 (release+12m)¥12,480
- EstimateSealed box decline from 2026 peak, May 2026 peak 24,500円 -> October 2026 20,000円