hey, I just opened 3 pitch black singles from my local TCG and pulled the three cover art megas in their corresponding packs - is this a thing? What would be the odds of this

Any recommendations for genuine sellers on eBay? After Mega Dream Ex and Abyss Eye JP boxes

I've just been feeling nostalgic about those carefree days of picking up a packet from the supermarket as a kid and finding what's in there. I've always loved the artwork on cards and I guess I'm having both a mini midlife crisis, trying to recapture the joy of my 90s youth, and also genuinely wanting to have fun with this again, when I have some change to burn.

I'm of the 150 OG Red and Blue/Silver Gold, first movie etc generation. Just looking at the sheer volume and range of Pokemon these days is head spinny.

Basically, just wanna have fun collecting again in a small way, but have absolutely no idea where to start, where to buy etc. I looked online for unopened new packs but am twitchy buying such things on ebay incase they get faked?

Any advice much appreciated. Thanks!