Fallout 76: I play on the PC. What makes it worth buying, though?
Firstly, I logged in planning to play a couple hours and drop off. Nine hours later the beta was ending and I was still logged in. My play experience, in that nine hours, was me and some random guy I just met tromping around the wasteland doing random stuff. We had an absolute blast just running from some 'Wanted' guy who kept following us around the map, just out of sight but ever-close. We fought enemies way above our level and screamed in terror as a herd of Anglers chased us across an irradiated lake-bed. The fact that you can drop in and just blammo, group up on the fly with no expectations is great. Team not working out? De-team and go your separate ways.
Also, it never felt tedious like Fallout 4 did. The leveling/perk system is entirely, entirely different and based around getting packs of perk cards and ranking them up and assigning them, which you can change up as needed such as swapping out Lone Wanderer (when you are alone) for team-based perks. You aren't completely locked in but it doesn't feel like your choices don't matter. I took lock picking, the other guy had some hacking perks. He hacked the terminals, I picked the locks. It was nice synergy. We got toys we never would have gotten alone.
On the topic of lack of tediousness, there's some really cool encampment systems. Firstly, you have your basic camp. A small area that -persists- every time you log on. I don't know if it disappears when I log off, but as soon as I was on, bam. There was my camp. My turrets, my walls, my everything. You can move stuff around, scrap it, upgrade. Etcetera. The prices for furniture/recipes is really, really high and cap gain is super low so buying my welcome mat felt like a triumph. Aside from the basic camps...
Are contested camps. Claim a power plant and you can build a ton of defenses and goodies, but other people can attack it and claim it from you. It's a great PvP element that you are not required to take part in, but when you do claim a contested area... you can build some truly massive bases. The build area is huge and there's a pretty lenient object budget you have to work with. There's benefits, too. Like easy mining spots, or access to fusion cores and fusion-core charging (I believe) and other hijinks.
There's also daily quests, drop-in events for large numbers of players, and all sorts of things you can do aside from 'X quest, Y quest'. The amount of content on the game is amazing, and you can repeat much of it if you like. There's easily a hundred hours of playtime for a casual, easily-bored player and much, much more for anyone who wants to really sink their teeth into it.
The only problem I ran into was, in some really, really dense areas I had some choppiness from my crappy graphics card. That was it. So yeah. That's why you should buy Fallout 76. I liked it enough that I bought a friend of mine a copy as well, just so he'd play it on PC instead of PS4. So it's got my endorsement.