Could be anything for anyone, really. For me, it's a mixture of everything:

• Thrill of opening packs
• Trading and meeting new people
• Messing around the General Chat Channel and helping out newbies
• Rising up the ranks and seeing new stuff being added to the game
• And last, but not least: Earning

I certainly started out with the last one in mind and definitely got frustrated and stressed out at first (used to freak out over getting lower than 50% rewards on a 1hr mission or something), but since casting it to the wind, it's become much more fun.

And, man, I think you're having the most fun out of us all - might be that you've lost the thrill after opening so many packs🤣

Being free and doing what you want is what brings you the max fun... I guess??🤔