For people who don’t mind doing a little one-time backup setup, Arq + Backblaze B2 is one of the best deals around. I’m currently backing up close to 300GB for 86 cents per month. 86 cents!
Arq Backup is currently a $49.99 one-time purchase. Backblaze B2 pricing depends on how much you store and restore from it. Arq automatically keeps the total storage used within your storage budget. Backups are fast and happen in the background. If Arq detects you’re using your computer, it throttles the upload speed so you never notice anything happening.
For folks who need something very simple requiring almost no setup, Backblaze Personal Backup stores unlimited data for $6/mo. Also a great deal, and no Arq required.