They are crashing again, and will continue to do it, because of Bitcoin rising incredibly fast. People sell their altcoins to have bitcoins to then sell them for fiat before buying back bitcoins when it will drop.

If I had cash available and moreover a way to buy bitcoins using cash, which is not easy at all, I would do it. Sadly I have not this chance, so I guess I will have to earn my bitcoins the hard way.

Well, then no, I do not know one. I think I never gave a big attention to those coins since I can not bring anyone... 

Such things are absolutely not crypto-currency. This is just a game nothing more. A greater fool game to be more exact.