The new price sheets are below. It's 0.026/GB and 0.020/GB. Let your jaw drop more :)

GCS pricing - https://developers.google.com/storage/pricing GCE pricing - https://developers.google.com/compute/pricing

Your prices are off by an order of magnitude (correct prices are $0.026/GB and $0.020/GB), and the latter is "Durable Reduced Availability" [1] not "Reduced Durability". It is availability, not durability, that is reduced.

[1] https://developers.google.com/storage/docs/durable-reduced-a...

As long as you don't need to use the external network with that data. The network costs dominate the price if you need to serve up any of that data.

Yes, what is that price ?

That is, what does 1 GB cost to upload and then store for one month ?

In our case, the vast majority of the data is not ever served up and is removed via lifecycle rules. However, just the fact that we have the data serves a number of our customer's use cases.

That's a part that also stuck out to me. With that kind of price, "online" storage is approaching what was previously only available in Amazon Glacier "cold storage" pricing. When Glacier launched, it was about a 10x difference between online object stores ($0.10/GB) and Glacier ($0.01/GB). Since last year it's been down to a 7-8x difference, and now it's down all the way to a 2x difference. Imo, that makes the number of use-cases where it's worth dealing with Glacier's retrieval model smaller than previously (effectively only those where you have a truly huge amount of data, such that the remaining $0.01/GB price differential adds up to meaningful money).

Outbound bandwidth is still expensive.

Not as expensive as Glacier and its intricate retrieval model.