You don't have to spend a dollar to use the network. Just start a Vault on your computer and let it run for some time. After you made some safecoin that way you could store data, tip someone, register a domain, and more. Do you have a nice blog? Add a tip-button and see the Safecoin come in.
Browsing the network will always be free, no need to have an account.
I brought up the show Silicon Valley in relation to this project earlier, and I wonder if it might not turn out similar. Basically nobody might care about being 'secure', or decentralized websites, or storing their data, but the project may find a niche somewhere else.
Distributing video/software (illegally) over a decentralized network... maybe?
Yes, that's 1 example. Take Germany, if they catch you downloading some torrents they offer you a 800 euro "settlement" so you wont be brought to court. People are scared to use P2P in that country. And a lot of people hate the big power of Facebook, Google, and the others. They want their have their own "decentralized Youtube" and social media. So if SAFE works the way it's intended people use Apps on their phones without even noticing it's a P2P technology.