Fallout 4 has been anticipated for nearly a DECADE. Two second after its release this fucking disgrace of a game called 'undertale' makes all of the exited as fuck gamers are just like "oh hey look at this piece of shite undertale came out and I so love it even though it's literally a couple of pixels and a Marco half second story and bosses that don't make sense. I love it" fallout 4 cannot be beaten. Plus, the chuck Norris of games AKA FO4 has DOGMEAT. FUCKING DOGMEAT. DOGMEAT IS GOOD MEAT! (Yes I am Irish)
Fallout 4 is praised endlessly by Todd Howard worshippers, even though it has the least depth out of the fallout game Undertale is praised endlessly because "muh feels" and "lolsoquirky dialouge" even though the game is objectively meh.
Although you could make the argument that MGS5 is full of kojima worshippers, but I'd say buying MGS5 gives you more bang for your buck with good characters, great gameplay, and a pretty decent albeit somewhat unfinished story. (Even if part 3 is never ever)