Backblaze is pretty awesome for open-sourcing, effectively, their costs in a high-competition segment. It would be difficult (read: pointless) to compete in th

Backblaze is pretty awesome for open-sourcing, effectively, their costs in a high-competition segment. It would be difficult (read: pointless) to compete in that market without massive vertical integration, greater scale, deep pockets and compelling, differentiated value (eg something different enough besides all the other entrants). For anything critical in business (customer list, billing, finance, etc.), I would recommend also using Tarsnap in addition to whatever other (non-AWS) vendor/s are used for "offsite"/"offcloud" backup.