This would ideally function like the Not Working label, removing all value from the price of your collection. Personally I would enjoy being able to keep track of my reproductions alongside my authentics

I noticed when I upload a PSA 10 Pokemon card, it asks "grading company" and also the drop down has an option to select "psa 10" if you select PSA for both, I've noticed card prices do not update correctly in my portfolio.  If I go into it and select the "blank" column for grading company, but keep PSA 10 selected for grade, the card price updates instantly when saved.

Changing the currency in the top right menu doesn't change the currency used in charts.

i was checking prices on Funko Pops today, and there was one that did not come up in search, and was unable to find a way to put in in my collection

Batman 144

DC Shop Exclusive

Diamond Collection

i need phone support

Add more Pokemon World Championships 2004 cards.

Is not on your liste  o to 137 is 91

And other foreign gold like sovereigns 

CGC8 and SGC8 pull down actual card values when you have a PSA 8.  Same for 9's and usually 7's.  See Grade 8 Shadowless Charizard as an example.  I reported a couple, but thought I'd send in the idea as well.