You mean, why should you build a for-profit product while relying on someone else's not-for-profit API?
I'm guessing you shouldn't!
I've seen a lot of neat projects come from Google APIs, but that's as far as I'd taking it.
Relying on someone else's good will for the lifeblood of your company is insane.
1 exception, though: Getting started. I could see using Google to get off the ground and then switching to a more reliable API (read: paid for) afterwards.
I'm guessing you shouldn't!
I've seen a lot of neat projects come from Google APIs, but that's as far as I'd taking it.
Relying on someone else's good will for the lifeblood of your company is insane.
1 exception, though: Getting started. I could see using Google to get off the ground and then switching to a more reliable API (read: paid for) afterwards.