Similar to the chart display by game as the option for loose, CIB and new... instead, you could have a chart that displays a stored inventory of all your games by console, genre, etc. Or if there's a place you could enter what you paid, you could chart profit (vs mkt value) in the same manner. Are your purchases smart and staying ahead of market value vs a game on that console or in that genre? Portfolios could be viewed by other members or simply shared. I'm sure a lot of work but could be a lot of fun!
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