That's not the point at all, I never said you need either/or...you need both for most good games. The hardware on the 360/PS3 not only provide better graphics, but better gameplay that isn't possible on the Wii (look at LBP or Banjo Kazooie). The graphical fidelity on the "HD consoles" can only improve the overall experience. It's still possible to have good games on the Wii, but there is a limit to how good these games can be and limit as to the types of games that can exist due to the hardware.
I think the analogy holds perfectly well. I've never read a book with a good story that's been written poorly, and I've never read a book with a terrible story written well. I look for a balance of both -- the same is true with games.
When looking at the market as a whole, graphical fidelity is the most overrated feature of a console or any gaming platform for that matter.
Best Selling Console Software of 2007 in the US (NPD)
1. Halo 3 (Xbox 360) -- 4.82 million
2. Wii Play w/ remote (Wii) -- 4.12 million
3. Call of Duty 4: Modern Warfare (Xbox 360) -- 3.04 million
4. Guitar Hero III: Legends of Rock (PlayStation 2) -- 2.72 million
5. Super Mario Galaxy (Wii) -- 2.52 million
6. Pokemon Diamond (Nintendo DS) -- 2.48 million
7. Madden NFL 08 (PlayStation 2) -- 1.90 million
8. Guitar Hero 2 (PlayStation 2) -- 1.89 million
9. Assassin's Creed (Xbox 360) -- 1.87 million
10. Mario Party 8 (Wii) -- 1.82 million
Best Selling Software of 2006 in the US (NPD)
1.Madden NFL 07, PS2, EA—2.8 million
2.New Super Mario Bros., DS, Nintendo—2 million
3.Gears of War, Xbox 360, Microsoft—1.8 million
4.Kingdom Hearts II, PS2, Square Enix—1.7 million
5.Guitar Hero II, PS2, Activision—1.3 million
6.Final Fantasy XII, PS2, Square Enix—1.3 million
7.Brain Age: Train Your Brain, DS, Nintendo—1.1 million
8.Madden NFL 07, Xbox 360, EA—1.1 million
9.Ghost Recon: Advanced Warfighter, Xbox 360, Ubisoft—1 million
10.NCAA Football 07, PS2, EA—1 million
Top 10 PC Games of 2007 in US (Corrected)
1. World of Warcraft: The Burning Crusade – (Vivendi) – 2.25 million
2. World of Warcraft– (Vivendi) – 914K
3. The Sims 2 – (Electronic Arts) – 534K
4. The Sims 2 Seasons Expansion Pack – (Electronic Arts) – 433K
5. Call of Duty 4: Modern Warfare – (Activision) – 383K
6. Command & Conquer 3: Tiberium Wars – (Electronic Arts) – 350K
7. MS Age of Empires III – (Microsoft) – 313K
8. Sim City 4 - (Electronic Arts) – 294K
9. MS Flight Simulator X - (Microsoft) - 280K
10.The Sims 2: Bon Voyage Expansion Pack – (Electronic Arts) – 272K
Top 10 PC games of 2006 in US
1. World Of Warcraft, Vivendi
2. The Sims 2, EA
3. The Sims 2: Open For Business Expansion Pack, EA
4. Star Wars: Empire At War, LucasArts
5. The Sims 2 Pets Expansion Pack, EA
6. The Elder Scrolls IV: Oblivion, Take-Two
7. Age Of Empires III, Microsoft
8. The Sims 2 Family Fun Stuff Expansion Pack, EA
9. Civilization IV, Take-Two
10. The Sims 2 Nightlife Expansion Pack, EA
If graphics were so important to the general market, you would think they would coorelate well with software sales. They don't. Highend graphics games are well represented in the top 10 yearly but so are titles who most redeeming quality resolves around their gameplay and/or genre.