Please add the IGS PGM (International Games System Polymega) arcade system and games. It is just like the Neo Geo MVS, an arcade system with cartridges for the games. It is red in color and many games are available on eBay to track prices. There is also a PGM 2 and a PGM 3, however there are far less games for those upgrade systems.

I've noticed that there is no proper listings for Asian Region (not Japan) Games. Many Switch games especially get Asian Region releases nowadays (Such as Final Fantasy VII/IX, Final Fantasy X/X-2 with X-2 on the cart, Chrono Cross, Grandia HD outside of the Limited Run Games Version, etc) and there are no proper listings on the site for them. These are distinct releases with different values/content on cart from other versions or releases of them so would be nice to separate them!

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? 

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.

I feel all ads should require at least one photo. These stock photos are not helpful to buyers in the least, especially if your a collector like myself. For those of you using just stock photos, understand that I'm overlooking your items and purchasing my games from others on the site who actually take the time to show what they are selling.

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.

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.