Like most people, I am unable to upgrade my whole rig every year. While faster CPUs, motherboards and GFX cards come out every year - if not every six months, my wallet (and wife) dictate that upgrades come in cycles. GFX this year, CPU next year, and maybe the mobo (and probably RAM) some time after that. And, I've never upgraded my GFX at each generation. I skipped both the 6-series and the 8-series along the years.
So, as my rig currently stands, it's not the speediest rig at the WSGF (that title belongs to Paddy). But, I do think that it is reflective of many readers, who (unlike most "professional" reviewers) don't get to upgrade to cutting edge each January.