Thank you for these tips on the priority.  Those were our ideas too, NES, SNES, and N64.  They are the most popular consoles in NTSC so I assumed they would be popular with PAL too.

Initially, all PAL games will be lumped together regardless if they are UK, Germany, Australia, France, etc.  At a later date we can add more versions if the PAL region is popular enough with users.

This item is on the site already:

https://www.pricecharting.com/game/playstation-2/espn-nfl-2k5

This is already possible.  You click the 'in collection' button on any item.  Then click the 'add another copy' button on the next page.  

You can also click 'add another copy' link on any individual collection item detail page too.

We are in the process of adding PAL prices to the site.  We are adding NES and SNES first.

Do you have any other consoles we should add to PAL that we should give first priority to?

That is possible already.  You click the '"new sealed" button on any marketplace search result and then click "filter".  That will show you a list of games that are new condition only.

Here is an example of the end result.

https://www.pricecharting.com/offers?console=&new=on&status=available

Can you elaborate on what you mean by this?  I'm not sure I understand.

Are you referring to the Vic-20 system itself or to the Vic-20 games in general?

You can download all the game data we have to a CSV file, which can then be opened inside Excel.

Visit this page to choose the data you want to download:

https://www.pricecharting.com/video-game-price-guide?f=menu

This is done.  All Neo Geo games are broken out by MVS and AES.

You can see all the AES games here:

https://www.pricecharting.com/search-products?type=videogames&q=neo+geo+aes

We will be adding Neo Geo CD later.

Thanks for this suggestion.  I always like supporting Bitcoin when possible.  I'll make a note about adding it to the site in the future.  For now, you can send bitcoin donations with this wallet:

1PcydhUiZZAU4fcSgSHwfRAHVK4ZrQ4msR

Thank you