Oh no doubt at all they are getting paid for the products they offer. It is a form of marketing for the companies who provide the prizes and ability to cash them in. I'm almost certain the bulk of their value is based solely on the micro - economy of the SweatCoin, though I could be wrong.

It's definitely an interesting coin. In terms of profitability, compared to any other faucet or mining rig an android phone can operate, SweatCoin provides the bigger gains by a LONG shot. Someone invested in this fully can cap $300 SWC per month per device on them. Crazy numbers for small time miners. Trade wise, I did some research, even bought some coins through a private sale, so the economy for it is there. It just needs more active users and a wider reach :)