This has been updated in the code.  The website should update in about 24 hours with the change.  The stars will still be a gray color, but the contrast is much better.  

Closing.  Amiga is here:

https://www.pricecharting.com/console/amiga

This is a duplicate of this one:

https://sportscardpro.userecho.com/communities/1/topics/97-add-nascar-and-other-cards-to-the-site

Please vote for this existing issue.

The request to rate games is here.  Please vote for that.

https://pricecharting.userecho.com/communities/1/topics/123-add-reviews-ratings-stars-or-whatever-to-your-pricing-info

I've updated the title of request to be about beating games only so it isn't a duplicate.

Fixed.  Thanks

I've added support for this on the site now.  I have not added any games, but users can add those and we will find sales now.

https://www.pricecharting.com/console/jp-neo-geo-pocket?uid=G59835

Sorry for that loss in information in your collection.  I will think about ways to migrate or notify users about these deletions so they at least know the item was deleted and can add all the details back to the correct item.  

Please describe more about how this feature would work/look on the site?  

I'm guessing something like this:

You would click "watch" button or link or something on any particular listing on the marketplace.

Then there would be a page showing all the items you have watched and their current status

You could remove items from the watch list from this page or from the listing details page too

This extension you describe already exists.  Any items in a wishlist that get listed on the marketplace at or below the market price, will generate an email notification to users.

Closing.  Fixed with alphabetical sorting.