I understand your points here. But, I myself really love eye candy... Yes, game play is very important and overall, I agree I'd rather have gameplay then eye candy. But, it's so sweet when you have both in the same game. When everything is done perfectly and you just enjoy a game for all it's worth... There aren't many games out there like that.
Look at FEAR for example. I'd give it like a 9 out of 10 for eye candy. But, the game play is so dull and boring... It's absolutely nothing different then any other FPS. It have virtually zero replay value.
Farcry i'd also give a 9. Yet, unlike fear, i can play farcry over and over again, any level and never get tired of it. May-be it's the outside levels that give you the ability to roam large areas... vs. FEAR which is limited to inside restrictive areas.
Then look at BF2. Great online gameplay, can play it over and over and over again... yet the graphics are about a 7.5, the same for games like CS:S, or HL2.