Would be great to be able to edit the quantity of a game in the Lot Calculator. Or/and to be able to precise the quantity in the list automater e.g; 

Ratchet and Clank (x45)

ESPN NFL 2K5 (x32)

I think Bakugan cards and/or figures would be a very useful addition. There are so many to keep track of.

There ought to be a way to tell the importing tool not to import duplicates.

I have a working spreadsheet of my comics. If I add new issues and import that same spreadsheet, I will end up with many duplicates. Additionally, there should be a way to click text search any items not found. By clicking this it will run a search in a new tab/window and if matched, remove it from the list of unfound items. Keeping this list of unfound imports tied to the account could come in handy.

Please add separate category for PlayStation VR

Requesting tracking for handhelds, or retro home arcade/LCD systems, that aren't affiliated with Game & Watch. They range from seemingly bootleg offerings to some that boast some fairly custom body types and controls, or big IPs. I did notice that many of the Tiger electronics systems do have proper cataloging on the site, but I think these could be a value add and could help bring some of these systems out of obscurity while they are still around.

There are a number of these that can be highly collectible, and I've them all over the place in Japan in cases at Game shops. Some pictures of a few different ones below.

I feel like if not one category, there could be a category for Bandai, and Epoch at least as a start: as they seem to have made many of them. http://handheldempire.com/ seems to catalogue a number of them as well.

Pokémon cards were released in many different languages. We should be able to distinguish these either with a language selection in the card details or (preferred) a new group for “Pokémon Base Set Spanish”.

I'm not sure how these sales are being pulled in, but every single loose sale listed is incorrect and for different variants. None of those should be attached to the N64 (generic black) console. There are many other games and accessories that have the same exact issue. I would encourage this to be looked into.

https://www.pricecharting.com/game/jp-nintendo-64/nintendo-64-system

Add pricing for like Movie Trading Cards, Cartoon Trading Cards, you could even add the Old school Desert Strom Cards, 

For example, let's say you have 6 same charizard cards but you want to keep only 1 and sell the other 5 with all your other duplicates. You can select to move 5 of them to a different folder so when you want to see all the duplicates at once it doesn't include the 1 you wish to keep for yourself.