Has Nintendo finally exhausted all the momentum out of the Wii and DS? Deutsche Bank seems to think so, which earlier today downgraded its rating of the Japanese super-happy-fun company to “sell.” The logic is pretty simple: odds are this is as good as it gets for Nintendo, so investors would do well to cash out now, and collect whatever profit it is they’ve accrued over the past few years.

That’s what the financial guys will tell you, at least, and all they care about is PROFIT and GROWTH and other such words you’re most likely to hear on CNBC.

As it is, the company’s stock has been trending downward today.

As I say I’ve said in the past when it comes to all these financial stories about the games we play, look, so long as you’re happy with your system and games, there’s no need to get into a pissing match about attach rates, sales broken down by region, etc. Just enjoy yourself.