That would be a great feature in general , but a potential drawback may be that repricing will take a season to come into effect and I wonder how you'd account for rental price fluctuations intra-season.

For example, at the start of the season the min market rent may be 1 DEC, then 8 days into the season it may be 1.5 DEC, if I check later in the season I'll see my 1 DEC rent is under market price, but if I relist for next season, I may be over priced at the start of the season.

I honestly don't know how you could account for this, but I still see value in the analysis as it will show you the general trend/demand level for a card. It would be a fair assumption to say that if price is rising , so is demand, it just may take a few season-cycles to feed into the market.

Of course , if you are buying and listing fresh cards, then this system will be very useful