Hosting yourself is still way cheaper. But services like S3 do get cheaper. When S3 was released in 2006, it cost $0.150/gb*month. That price underwent a half-d

Hosting yourself is still way cheaper. But services like S3 do get cheaper. When S3 was released in 2006, it cost $0.150/gb*month. That price underwent a half-dozen or so cuts every couple years to reach its current price of $0.03. Its actually been that price for about 2.5 years now. With competition from Google, Microsoft, and Backblaze, its possible we could see a push toward even cheaper prices before too long. As for security, S3 does support SSE at rest with a user-provided encryption key. So you're good to go there.