was fun. PFS is cool. it's basically a group that can run on a drop-in drop-out basis as people are available. so if I can't make a run, that's fine, they just run without me and my character simply wasn't there for that particular adventure... though he may eventually run that same adventure, if the group runs it again, or if I run it with a different PFS group. it gets a little tricky keeping track of which characters your character knows, but that's RP stuff and totally optional anyway.
for example, this Half-Orc barbarian and I have run quite a few adventures together. he's a drunk and i'm a cleric of cayden cailean (basically Bronn if Bronn got drunk and someone bet him he couldn't go through this grand challenge to attain godhood- and then did just that), so I keep create alcohol set. we are now drinking buddies, and it's actually been a useful thing in a few adventures now.
This last one was an Evergreen, though. a low-level quest that is never retired from the collective PFS story. so I was playing my half-orc warpriest of gorum, who is an arrogant zealot. we lit a building on fire and bludgeoned a guy unconscious in a "barfight" to disrupt a secret meeting. I helped extinguish the fire, then intimidated the barkeep into forgetting he saw the bludgeoning.
and i'd love to get into the Warhammer/etc scene. Wargames look pretty fun, and there's some sci fi systems I'd fucking love to play with. Saganami Island Tactical Simulator, Star Wars Armada, X-Wing, I think there might even be a Firefly one. Alas, minis add up, and you need a lot to pull it off. Now, if they'd let me use my Legos as minis, I'd be all over that. In fact, I've seen a lego wargame system around, but it incorporates the lego building capacity into its damage system and that just seems way too complicated/weird. I'd rather use an existing framework and just have my legos be representations, the way minis are. Shiiit, I already have a fuckin Droid Army. I could build some pretty badass supplementary vehicles for it. Prolly do that anyway haha.
I like how PFS works but I am growing to dislike Pathfinder as a system compared to 5E. I may just do it because as you mentioned, you can hop in and out with a character as your schedule allows.