Allow users to sort their collection by genre which would allow users to only view specific categories of their collection making it easier for users to maintain focus on their primary collection goals.

It'd be awesome to be able to see a list of games in your collection that have have recently increased or decreased in price. I love logging in and seeing that my collection's value has increased, but it's a little frustrating that I can't see why that value is going up (or down). 

Perhaps the list could be could be sortable by biggest increase/biggest decrease as well? 

Would be great to filter by items that are on your Wishlist or not in Collection on the eBay Game Sniper Tool.  So you can filter out all items that you have already and only get alerts on items that you are looking forl

Since the Saturn's Japanese library is so much larger than its American/PAL libraries, and since there are large price disparities by region, I would love to be able to track the prices of Japanese imports for the Saturn.

It was really helpful to be able to click on the developer or publisher of a specific title to see all of their releases. I really wish this functionality would come back!

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.