You buy companies for future revenue streams. However, look at EAs history. Declining revenues and development houses where the top talent has moved on. I see EA possibly ending up as the GM of videogames lol, without a bailout.
By the way Origin is poor compared to Steam and I doubt EA will be able to get many publishers outside their own to list their games there. The $60 game will still be there, you're right, but indie devs will continue to grow via digital distribution. The thing about indie devs is that they can innovate and profit much more easily than EA can. EAs $100 millon blockbusters are bland and generic, whereas indie devs may be more restricted and this can lead to some games where they do a few things REALLY well. You know, innovate.