You aren't arguing because apparently you have no argument, or at least not one good enough to present. You're trying to tell me Fire Emblem is samey when a whopping two games have every made it over here on consoles, and two more (and a remake) on portables, for a whopping 5 games ever across 4 different game systems, and somehow that's the same game. Or Super Mario Galaxy, which is apparently the best game released this entire generation, if going by metacritic scores (you know, those western journalists you seem to care about). Nintendo also deserves a little leeway with sequels considering they have made far more original series than any other game developer, and several of them combined.
I don't always like what Nintendo does, but I would never be dumb enough to say they were butchering the industry. Infact, Nintendo hardware may have single handley kept the video game market from going into decline the last 3-4 years, considering how many sales records they broke those 36 or so months while the 360 and PS3 started real slow and stayed that way until their redesigns and pricedrops years later. A 30% console failure rate, or a $599 dollar console might be a bit more of a grey area with regards to butchering, but I digress.
...no, it isn't. The DS is, by far, the most popular game system in the world, and has also sold the most video game software, by far. The runner up is the Wii in both hardware and software numbers, with the 360 a distant third (but really good software sales). PS3 is fourth (I think, not sure on PSP numbers) but could possibly be third someday.
http://vgsales.wikia.com/wiki/Video_Game_Sales_Wiki
Those numbers are backed up by the NPD and data collection of other countries.
Kinda silly to say the market is in decline when the most popular system in the world is completely dominated by Japanese-based games. It doesn't matter where it's played. Where are you getting your numbers?
Maybe Western devs will be more willing to work with the 3DS and become relevant in the portable space.
Enough though. I'm not derailing the thread any further.