From what I hear, investors have always liked Nintendo. They've often been profitable, and usually moreso than the competition, I gather.
Nintendo sells approximately as many GBAs as Sony sells PS2s, or maybe more. Now I don't have exact numbers, but if Nintendo profits from every GBA sale (they should, considering the technology was dated even back in 2001) and a PS2 sale is at a loss, or at least less profitable (consider that it's being sold for about twice-thrice as much but probably costs multiple times more to produce than a GBA) then Nintendo is already ahead. Even if my reasoning is wrong or inaccurate, remember, that's just the GBA. Add in the DS sales (higher than the PSPs, and again cheaper to produce) and GameCube sales (lower than the Xbox's, yes, but not by a lot, plus again, it's cheaper to make), not to mention that most of the software bestsellers on any of those systems are Nintendo's own, and it's ridiculous for anyone to think that Nintendo is getting out of the game business soon. They're the most dedicated to it.
That being said, they'll continue with the cost-cutting measures. We already suspect the specs aren't as high as the competition's and the graphics won't be in HD. I would love for the Revolution to have a comparable storage medium, but I'm guessing it's just going to be a variation on DVDs... But their faults are covered up with the always-exclusive Nintendo franchises, and hopefully they'll come up with more for those gamers who don't identify with Mario, Link, Samus, etc.