- PriceCharting Features
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Ideas
Show Historical PSA/CGC POP Report
It would be extremely helpful if each trading-card page showed how its PSA/CGC population has changed over time, rather than only showing the current population by grade.
Ideally, the Population Report section would include a historical chart with:
- PSA 10 population over time
- PSA 9 population over time
- Total PSA/CGC population over time
- Population added during the last 30, 90, 180, and 365 days
- Percentage growth during those periods
- The dates of the population observations
- An option to select other grades
- Monthly or weekly history where available
A simple summary could show:
- Current PSA 10 population
- New PSA 10s during the last year
- Annual PSA 10 population growth
- Current gem rate
- Whether population growth is accelerating or slowing
Price history is much more useful when it can be compared with supply growth. For example, two cards may have similar prices, but one may have a stable PSA 10 population while the other is adding hundreds of new PSA 10s every month.
PriceCharting already has historic sales charts and current graded population information, so adding population history beside the price history would make the trading-card research pages substantially more useful for deciding whether a card is worth grading, buying, or holding.
Customer support service by UserEcho
Good idea. We have plans to add something like that in the future. Unfortunately PSA and CGC don't share that data so we need to generate it ourselves based on our own checks on their current populations.
I think a useful way to make this work could just be to build the data over time and start as soon as possible, taking automatic weekly snapshots of cards populations then using it to build the database over time. This information can be very useful for determining liquidity and I think would honestly bring more people to the PriceCharting ecosystem because it would be a unique dataset that most other similar sites/apps don't have.