Continuing on my thoughts on costs, with some very quick napkin maths (apologies if errors)

* From https://www.backblaze.com/blog/hard-drive-cost-per-gigabyte/ 1TB of storage cost around $25. * I'll assume 3 year life-span for a drive. * Add 50% costs for the infrastructure and electricity to support the storage. * Add another 17.6% due to redundancy (17 data shards + 3 parity) - https://www.backblaze.com/blog/vault-cloud-storage-architect...

Gives a minimum cost (before employee costs, marketing etc) of $1.22/TB/month.

If we do the same with Siacoin (which I believe stores 3 copies of your data) we get $3.12/TB/month.