Where did you get that number, out of curiosity. Google's cloud storage is 2 cents per gb per month and backblaze b2 is $0.005 p/ gb per month. I understand in perpetuity is more expensive but why does it cap out as opposed to being a yearly price per gb (maybe if you assume hard drive storage will decrease at a similar rate?)
Quick envelope math, if they were using backblaze pricing, $5 would give a gb 83 years of storage. But it's unclear if backblaze is actually regionally duplicated