Yeah, there are.  I haven't done much research on them (yet, anyway), but you should be able to find similar X-year trends in other sectors of the entertainment industry.  1, 2, 5, 10, 20, 40, and 80 year cycles seem to pop up a lot in human behavior in general, so it's hardly shocking that cycles of similar length pop up elsewhere.  You can even see cycles of those particular increments in this industry (yearly sales trends, bi-yearly periods of release ups and downs, 5-year intervals between generations, 10-year intervals between shifts in industry focus, 20-year intervals between industry reboots...).

 Although you do have to be careful.  It's very, very easy to see patterns where there aren't patterns, or to see a pattern which isn't really a pattern at all when you look at the bigger picture.  What we want to see has an immense impact on what we actually see.

I will do my best sir.

without the Wii, the PS3 would be THE last one.... right now, there are 2 loosing the console wars. PS3 not being alone in defeat is good for it :p

Haven't read the whole looong thread so sorry if somebody already made the analogy but:

Muhammed Ali wasn't a referee, as much as the other boxers might have wished him to be.

edit: read it now and Grampy totally owns Megaman2 and his thread.

SO... You want Nintendo to leave... Because they are embarrassing the HD consoles? Well, there's a gap in your logic because if the wii leaves, there will still be one console that is embarrassed, and I can guarantee you it will be the ps3. If only because of the price.
So.. I fail to even remotely see a point.

Haha you got banned.

Just watch you don't get banned for saying something like this. He did deserve it but you don't go round gloating about it.

I don't understand your logic... The Wii should leave the race because it is doing exceedingly well? According to your logic the PS2 should have left the 6th gen race and let the Gamecube and Xbox fight, and why would Sony do that?

I'm detecting a hint of Bias in the OP

If you really think about it the wii is the only console thats keeping a part of the industry alive since most of these HD games dont sell like nitnendos games they're not making much of a profit. This where some gamers dont understand.

The industry could hit a snag if they're not making much profit, this is why the japan market is dwindling and because of that nintendo decided to take matters to their own hands by doing what they have been doing 20 years ago. yes the gamer community had grownup but some of these gamers probably dont have much time due to jobs and families.

so by making games for the famly and kids (which we once were) they are going to bring a new generation of gamers that will lilke these hardcore franchises. I know what you are about to say and yes the wii sales ratio is not that great compare to the other two but thats because dev think they can just make a game for nitnendo with little effort and expect it to sell thats bullshit.