ARRRR! I like ye comments about innovating to stay healthy in the industry. I heard a tale from land-lubber Jim Kramer (has a show called Mad Money...not a reliable investing source, maybe, but funny to watch.) He gave an interesting example of how BUNCH (Burroughs, Univac, NCR, Control Data and Honeywell) were considered THE computer investment back in the 70s or early 80s, but they completely missed out on home computers because they were too busy building already-profitable mainframes. When was the last time you bought a piece of computer hardware from any of those comapnies?
Anyway, the compAARRRRison doesn't perfectly apply to Nintendo's situation, because they're not up-and-comers in a stable market where MS and Sony are the "old guard", but the basic idea is the same: relying on existing sources of booty and old ways of plundering is not always best.
Edit: More thoughts: Arrr, I really liked the parts where he discussed the fine-tuning of "genre kings". It be true that people come to expect more and more "trimmings" from the top games in each genre. There be no point in making a new FPS if ye don't have the budget for voice actors, elaborate cut-scenes, and dozens of multiplayer gameplay options. That's why Mario Kart Double Dash was a bit of a disappointment. As a genre king, I had high expectations for the game to offer more maps, more options, and more challenge. It delivered almost none of the above, and became even worse in a couple of regards.
The only place where I don't see eye-to-patch with this fella is on the notion of un-tuned game concepts early in a new genre cycle. While there be no doubt that The Ocarina of Time, Metroid Prime, and others have offered a more polished experience, Wave Race 64, Pilotwings 64 and Super Mario 64 all offered complete, finely-tuned experiences using the new technology, moreso than any of the early DS games. I agree that time made 3D games even better, and it is making DS games even better, but I think Nintendo can and should offer at least two really solid and complete experiences right at launch if it wants to make a great impression with Revolution.