As far as I can calculate those free uBTC is equillivant to $0.073 - $0.00073..
BTC going rate at btc-e is $727 atm.
Wouldn't it be better just trying to mine some?
Yeah, but let's face it, these faucets and free games are just for newbs to get some coin in their wallet. It's really not worth your time at the end of the day, but if they're fine with less than a cent, let em go for it.