I like this idea.  We probably have lots of the tools in place to do this behind the scenes.  Maybe we can have an opt in option on the wishlist to notify users when these items become available.  Then we need to setup email for it.

I need to think about this a bit more to decide on exactly how this would work in the backend and see how popular this would be with other users.

It looks like these are Japan only releases.  We don't track Japanese releases for those consoles yet so we can't add those to the site.  I noticed you add Wondermega already.  I'll be deleting that. 

When we add Japanese games and consoles for that system I can add these consoles too.

Can you send me a photo of the product you are referring to?  Or a link to it online?

Thank you

Please report any incorrect sales that are not actually CIB so we can remove them.  Our algorithm is not an average of all sales because the sales happen over a period of time.  More recent sales are more accurate for the current value then a sale that happened 6+ months ago for example.  We also have methods in place to remove outlier datapoints as well.  You can read more about it here:

https://www.pricecharting.com/page/methodology

We generally don't track homebrew games.  We added Pier Solar and Wukong because of the value of them, but most homebrew games are not very valuable. 

I've added the travel bag now, it is Sega brand.  I cannot add the bat controller because it is a 3rd party item.  We don’t track 3rd party controllers or accessories. There are tons of different 3rd party controllers/accessories and most are not very valuable.

I hope you can understand. Thank you

Please email the exact items missing (name and console) to sales@vgpc.com

If you have accessories or hardware missing, please give me a link to them online (photo or info) so I can make sure I'm adding the correct item.

Please email me with anything we are missing.  I definitely want to add all games and first party hardware to the site.  We don't track 3rd party stuff though.  sales@vgpc.com is the best email.

I've added this now:

https://www.pricecharting.com/game/pal-sega-master-system/hang-on-sega-card

You can do this now.  Click on the 'in collection' orange button on most pages on the site and then click 'add another copy' button on that next page.