Startup Idea: Price Tracking Software for Video Games and Consoles

Startup idea to develop a software that tracks past, current, and predicted future prices of video games, consoles, and parts. The software should also track sales history to help identify rare titles and predict future value changes.

selling many video games,consoles,parts on ebay ,amazon. it would be nice to have some software to keep truck of prices before ,current and prediction for future

because some video games or console right now gain value over time some loose

some old games cost crazy money now and was super cheap before and same time some expensive games now loosing value rapidly now but may gain value in future (10+ years)

great if software able to truck how many games sold in some years (so i can know if title rare or easy to find)

some bad games sold so poor in past can be so expensive now because no one bought them before

yes i will consider to buy this type of software.