Five or ten bucks a year is impossible to attain. The monthly cost of a hosted GB is about a cent. At 25GB, in a service with fast search and, I imagine, regula

Five or ten bucks a year is impossible to attain. The monthly cost of a hosted GB is about a cent. At 25GB, in a service with fast search and, I imagine, regular snapshots and backups, you'll be using up to 200% overhead. Assume that most accounts are not at 100% usage and, in the spirit of a Fermi estimate, set a typical usage of 50GB. You get to an yearly cost of $6. At $6 cost of hardware per account, now you have to factor in other costs and your profit margin. Support alone will bring you above $10. Marketing will also bring you above $10 on its own. At a decent scale, you can keep the marginal cost of engineering low (as it does not scale linearly), but on a mid-sized operation expect it to bring you above $10 on its own. All in all, $50/year is high but not stratospheric.