Yeah, it sucks. Unfortunately, it's been sucking for mid-range gamers for a lot longer than that! The idea that a gaming PC can last you for an entire console cycle is a dirty, dirty lie. I guess the bloat is finally seeping up to the high-end.
A decent PC lasted a long time during the previous console generation but with this new generation and its unified 8 GB of memory the VRAM requirements on PC have gone up a lot. WB claims a minimum of 3 GB for AMD users to play Arkham Knight. A new graphics card with > 6 GB of VRAM will probably last quite a few years from now.