Huh, that seems like a pretty rare offer!

Some of the more affordable providers that I know of:

  Hetzner 1 TB storage VPS: €3.45/month
  Time4VPS 1 TB storage VPS: €6.65/month (with yearly billing)
  Contabo 1.4 TB storage VPS: €12.99/month

So Hetzner can be €41/year (though taxes vary) for a single TB, but all other providers that I know of cost at least twice the amount of money or so.

Hetzner storage is not VPS, for what it's worth; it's a restricted ssh environment that won't do much beyond storage. About the same category of offering as rsync.net, I'd say?

ServaRICA "Polar Bear Storage Offer".

What do you use for backups? That's another cost on top.