Originally Posted by Minuous
I don't see how it is "protecting their investment"
Of course it bloody is.
Console manufacturers make 99% of their cash from the sale of games.
The second someone figures out how to run custom code on their console it can mean that either:
1) People can buy the console for reasons other than buying games, i.e. running media players, homebrew games, emulators etc.
2) People can buy the console and play pirated games.
Both of the above mean that they will be selling consoles (possibly at a loss) to people who have no interest in buying games.
They don't want that to happen. They want their consoles to have the highest attach rate possible.