Well, they actually did succeed in conquering Germania, or at least the areas they were most interested in, as well as in Britainnia. Anything too far out North was considered uninhabitable and unnecessary. So no effort was put into claiming land that was thought by the Romans to not really be part of the civilized world and completely inhospitable.
You have to remember that Germania basically meant everything North of Rome, so they realistically couldn't take over every single thing. They went after what they deemed worthy.
For example, the better part of Germania and Britannia back then were probably the parts Rome did take. Northern Britain and Germania were just too damn cold, and rough even for the Natives.
On a side note, Spain was basically Southern Britain back then. It's just very interesting for me to read about a group of people who were considered very intelligent by both the Greeks and the Romans, and have no previous connection to either culture. So they weren't considered Barbarians, but they weren't considered friends of Rome either. Weird place in Roman and Greek history.
I agree after Germania, Britain was a probably the worst. The land was a bit too far out Northwest for comfort and the whole place must have had an air of mystery about it to a Roman person at the time.
The absolute worst of all of Romes campaigns, however, was Hispania without a doubt. They simply lost too many men, and were humiliated a few too many times, to the point where their dominance of Europe was being questioned.
The Celts of Spain were eventually sent to Britain, as so-called "Romans", but eventually sided with the Native Celts of Britain and kicked the Romans out.
Spain and Britain were inhabited by the same people. The Brits being the descendants of Iberians (Basically Spain, Portugal, and some of Southwestern France).
Oh, most successful companies (not just Nintendo) tend to sit on huge piles of money for next to no reason.
Though Nintendo does spend money on R&D, it's probably just a small fraction of their stockpile. It's also possible that it isn't even taken out of their giant Wii/DS success stockpile.
It's just something that always bothered me about the way companies work in general.
If by doomed you mean that they'll likely fail as a company and never return, then that is very unlikely after the success of the Wii (they were in danger prior to the Wii, however).
If by doomed you mean that they may have a terrible few years ahead of them thanks to a misstep taken recently, then yes, they could be doomed in that sense.
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