Saying those things are all copys is a bit of a stretch and obvious conjecture, and you didn't even address all of them. Even motion control was already out before. What these guys did right (and I mean everybody), is that they made these innovations the archetypes.
Both the xbox and 360 are successful for what they are intended to do. Cut out a slice of the livingroom for themselves. PS3 is one of the fastest selling consoles and has a lot of others beat out, and successfully won the HD war. So, as far what is good for the company, they were successful.
But you are right, Nintendo does take the risk, like someone would take a risk of missing with a shotgun, while sony and ms prefer to take the easier safer shot.
PS: I didn't know the psx was it's own console, I thought it was simply the japanese ps2. So, I guess they did have a failure.
PS2: I'm not trash talking Nintendo at all. I'm saying that down the line there is going to be a spree of innovations, and a lot of them are going to be failures because people think they have learned something from Nintendo's strategy. Even Nintendo said that they will have something different if everyone does motion control. Where is the correct "up" from here?
I call something tanked if it is quickly withdrawn from the market, never supported, or just generally a failure. I'm not going to argue semantics. I'm talking Power Glove-tanked.
EDIT: @rotsounmann
PSP is successful. It is a great product, has lots of games, and makes lots of money. It's not Sony's fault that the DS is so much better. It's the best Non-nintendo hand held ever released. Even then it comes close to beating both the gameboy gameboy color and gameboy advance if you look at the individual sales.
