Methodology

• Posted estimates come from each grader's public pricing page. A scraper Worker re-checks TAG and CGC daily (respecting robots.txt) and stores every change in price_snapshots. PSA, SGC and Beckett values are entered by hand from their sites, since those pages block automated fetches or need JavaScript.
• Actual turnaround = calendar days from the date a collector says the order was submitted to the date it was marked complete, averaged per tier. Graders quote business days (PSA, BGS, SGC) or working days (CGC), so actual calendar-day figures run higher.
• Stages: Received → Research/ID → Grading → Assembly/QA → Shipped → Complete.
• Rows marked example data are demo rows only and will be removed before launch. Values marked needs manual entry haven't been verified yet.