I just really hate to go back to chasing that upgrade dragon.
Well then you're in luck, because keeping a gaming PC capable of playing the latest games is less painful than it has ever been. Mid-grade CPUs and motherboards from 3-5 years ago are still perfectly capable of running any new game. Ram and HDDs are dirt cheap. The only thing you'll be sinking much money into is most likely a graphics card, and even that isn't too bad if you shop carefully. Usually the best value is a current-gen mid-grade card that you can pick up for $150-200, and you won't need to upgrade it more than about every 2-3 years. And this situation is only going to keep getting better.