Litecoin is looking good in my opinion, but I'd almost be willing to bet that there will be central banking systems developing their own crypto solutions and forcing it on their people to replace fiat... They'll do their own mining, and in that way, they'll be able to collect sales tax on every transaction... just speculation... but it would solve the problem of tax evasion as well as fufill prophecy of people having to receive a mark on their person in order to buy or sell...
RE: Market Crashes and Suicide