comps
sketching a sandbox for tracking sold prices and chasing sneaky ebay data.
starting point
jump to ebay
sold listings, ready for crawling later.
ebay search · sold & completed
Manual clicks for now; soon, we'll quietly harvest the data instead of scrolling forever.
intent
card comps lab
a test bed for turning messy listings into clean signals.
Goal: build a lightweight comps tool that ingests sold auction results, normalizes player/grade/variant, and surfaces the believable median faster than a weekend spreadsheet binge.
This page will eventually host the ingest and display layers; for now it's a mood board with a live link out to the source.
future shape
sketches & possible modules
- Query rail: quick search by player, set, grade, and parallel with saved shortcuts for personal chases.
- Price lane: rolling medians, floor/ceiling bands, and a "trust score" that filters out suspicious anomalies.
- Lot disassembler: split multi-card lots into per-card estimates, tagging unusual freebies.
- Heatmap view: week-over-week deltas plus alerts when velocity spikes for a watched card.
- Export hatch: CSV/JSON buttons for pushing comps into buying checklists or liquidation planning.