I would like to see something like a price check app that bloops up when looking at ebay listings. I don't know if I'm explaining that right, but as an example say you're looking at a Super Mario Bros. listing on ebay for $15, the plugin would bloop and be like "we have this item valued at $5 and rising" or whatever

This would help a collector quickly track which games on their collection page are increasing or decreasing in value. Would be good to add to a sellers listing as well.

I keep encountering listings falsely under CIB for high end items that shouldn't be there due to including missing components, reproduction components (manuals, boxes) etc. A way to include a reason why a listing is being reported so that certain reasons could be prioritized and looked into (perhaps out of a drop down list of potential options + optional text field to be specific?).

I feel like wrong information shouldn't stick around long but it seems like just the plain old report button doesn't always seem to get things sorted out with any real speed and that's kind of a bummer when its regarding a piece you own yourself.

Create a tool for users to create a custom set or list.  Then let users collect against that list and see what they have in their collection and what they don't have yet.

Examples: a list of all licensed NES games, Mega Man home console games, games published by Konami, etc.

It would be great to have a button on each wishlist item to move it to your collection. Right now, the only way to (indirectly) do this is by clicking on the wishlist item, then clicking "See Historic Prices" on the item page, then finally there's a button to add it to your collection. This would make updating your wishlist much more convenient and would also give that tiny endorphin rush from "completing" an item of your wishlist.

The site doesn't currently track or list Bandai WonderSwan consoles or games. It could be great to have them!