So why not invest a little in alt currencies? What have you got to lose? Like this dodgecoin shit, mine for a few days, get a few thousand coins and sit on it. If it takes it, wahey, if not, you've lost maybe 20mins of your time and a weekend's worth of CPU time?
This is the safest way to invest, mining some coins out of every new altcoin. You can not loose much this way especially if you enjoy it