Blizzard RTS games were a reason to get a PC again and i sticked to it for last gen, it wasnt until Tekken that i wanted to have a PS3. PS4 was natural but i was anticipating Bloodborne but not as much as system seller.
The only real other systemseller i would say was Fatal Frame 5 for the WiiU, i just got it because i knew the physical version is gonna get rare but i kinda got enticed from the artbook etc.
With PS1 i didnt had much choice. But i did got Hexen for N64 and the system just for that game when me and my mother found it for christmas around the PS2 era, the PS1 version run like crap.