In what area of human history have people found a more effective investment and not pursued it? Or rather, who found a more effective investment, ignored it, and passed on their genes?
Naughty Dog reached a certain level of success with Crash Bandicoot. They wanted more.
You're making the same mistake as the rest.
In finding a new more lucrative investment and pursuing it, YOU DON'T HAVE TO abandon all your existing investments.
You keep investing in what's given you success thus far (i.e. long-term growth investing), while jumping on the back of the latest cash cow (i.e. short-term value investing) to milk that bugger dry.
It's not a "one or the other" scenario. Sony can and always will do both.