>>57211703That pic is just bulk, those cards are like a few cents each. Check Pokedata first before you buy anything, but most importantly don't collect because you want to invest, collect the cards that you actually like.
Since we're in a bullrun, prices are going to be inflated and will crash probably next year, so if you're going to invest big money, doing it right now seems like a bad idea, unless you can get stuff for MSRP, but good luck with that.
https://www.pokedata.io/cards?q=gyarados 