Auroracoin has tanked big time. Spaincoin has also declined significantly since its highs.
Bitcoin: only invest what you can afford to lose.
Alts: only invest what you can lose without even noticing that it's gone ....
Serious alts are relatively safe to invest in. Peercoin, Dogecoin, Namecoin and most others who have a raison-d'etre have been doing great and actually lost less value than Bitcoin since yesterday.