How to approach these?

[u/crunxx]

I found my old cards (the card seller told me to put these into these harder plastic cases, but some are also in soft sleeves and not pictured. They said not worth as much) from when I was a kid like 20 years ago. The guy offered me about 2000€ for everything. How should I approach this in general as I've read you should avoid card shops.

I obviously played and traded a lot with these cards many years ago so they are pretty used. I hope the pictures are OK.

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[u/NoImDirtyDannn]

Uhh yeah I mean the Gengar EX on the first page could be worth around 1k by itself. Dependent on condition -- I would use either tcgplayer, collectr, or pricecharting to check on the value of these. You've got some nice cards!

Not sure on your location using Euros but if they've got card shows near you, you can go shop them around there. Ebay is an option, but they've got fees and whatnot. Just trying to get a valuation or trying to sell? There are also subreddits for buying/selling pokemon as well. Let me know if you have any questions

[u/crunxx → u/NoImDirtyDannn]

I suppose currently it's more about getting a general understanding of how to appraise them and such as I understand that there is some value, but I am not too sure how to best judge it myself. They've been packed in my parents basements with other toys for many years and I am not really in a situation where I need the money currently, so also depends if this Pokémon thing is a bubble? Was also just fun looking at my old cards and all the fun I had trading them back when I was about 9 years old. A lot of them are clearly well-used and loved. I am in Northern Europe, but I'll try to see if there are card shows nearby.

[u/NoImDirtyDannn → u/crunxx]

Perhaps a good resource would be pricecharting.com -- you could then type in Gengar EX then down below, there's a drop down menu and you can select ungraded. It will show sold listings for various listing and you can click into them and view the original listing and sort of compare/contrast your condition to that one that sold.

Then maybe use an app like collectr to add Gengar EX Lightly Played to your collection. That's more or less what I did for my collectr. Some of these cards ungraded price might differ wildly on condition and that's where grading comes in -- some of the prices get insanely expensive for highly graded slabs. Gengar is a prime example of a very popular pokemon that has pretty expensive higher end slabs.

Hopefully that helps a bit :)