And enter the console market? Buying out both would cost them around 10% of their cash. I think they should do it. They already own your pocket, soon your car, leaving the living room the only place they do not own, the Apple TV has a limited market. Nintendo's home console hardware days seem over, they can not compete with a traditional console. Apple handles design of the hardware, do the marketing deals, Nintendo makes the games. They also enter the mobile market in the best way possible with Apple having total control over the Appstore. Nintendo mobile games and companion apps will have preferential position, we all know how big games are on the Appstore front page.

Sega acquisition is to fill in the gaps and bring more games to the platform because Nintendo alone isn't enough to supply games to both platforms, Sega is a great fit as it only costs a fraction of other publishers and they have a huge number of IPs(even more than Nintendo) to make the disgruntled hardcore fans switch over, a new leadership will bring their franchises back top a global audience seeing how Sega has been mismanaged for years. Apple also has the cash to grab all the 3rd party marketing and exclusivity deals so on top of pleasing the hardcore, it'd also have marketing for Fifa, GTA, Destiny, CoD etc.

If Apple does this, they own both traditional and mobile gaming forever. Would anyone be against this except the execs at Sony and MS? We finally get to play Nintendo games at the hardware we want, Sega makes a return, win-win for everybody.

Why would Apple do it? They are making a killing barely doing a thing with the Appstore, and the console market is incredibly crowded as it is, just by PlayStation alone. They don't care about gaming, and their attempts at mini-consoles (AppleTV and low sales of its videogame apps, anyone?) have failed.

I believe Sega and Nintendo can refuse a buyout right? Apple surely can't just do a hostile takeover if the companies don't want to be bought out and they own a majority of the stock.  I believe Japanese companies are protected more under their laws from foreign companies buying them out or hostile takeover.

Microsoft tried to buy Nintendo once. Didn't go well for them.

Nintendo wouldn't even entertain the thought. Don't know about Sega.

Apple wouldnt even entertain that thought. 

Nintendo can't be bought, no matter how much money you have. They hold more than 50 % of their shares themselves. And even if that wasn't the case, just watch the stock prices skyrocket when you even try to attempt such a thing. They are simply to big for something like this to happen.

Why make a console? To own the living room. There is enough money to be made from consoles.

2nd, why should Apple become a game publisher on the Appstore as well? Because they currently only take 30% of revenue and not 100%.

but game development is a huge risk - a few years back it was said that 3 of 10 big game projects actually make money and have to make up for the failed ones, but right now this quota might be better because publishers have become way more risk averse and are actually not doing much besides their hit-franchises

just taking 30% of any game release on your platform on the other hand is 0 risk and you get to profit from other people's success (as long as your platform is too big to ignore)

As Apple is the owner of the platform, they can place their games on the front page for however long they want just like Steam is advertising Valve games. And I trust Nintendo games to be of high enough quality to warrant top 10 rankings.