Ask HN: Cheapest reliable cloud storage

Google Paid Storage is the cheapest way I've found to store a 25-80 GB photo library using Picasa API at mere US$20 for 80GB per year. Trying to do the same on Amazon or Azure goes up to US$0.15 per GB per month, making that US$144. Amazon is close to that. Just too much for some business ideas.

If you build a service on top of Google Storage and given the recent situation with Google APIs, what alternative would you have? Which other reliable and cheap as Google storage do we have?