Data breach in one service is one thing...
Another thing is if your entire on-line life is in one service provider.

What if someone finds your google account password?
Or if google wakes up in a bad mood and just decides to lock you out from your account? (like happened to me) Or if it just decides that I have violated one section of the TOS (that I bet very few people pay attention to) and it kicks you out from its services forever...

I am a big google fan and I like many of its products... But once I realized how much info they are gathering, maps, videos, news, ads, search, desktop and now they are following me on my pocket, I decided that it is better, for me, a more fragmented on-line life for a bit more privacy and assurance that I wont be locked out when I want to upload my pics or read the news...

But that is me...
Sometimes I tend to look over my shoulder to check if someone is following me... Paranoid android.