Yes, you are absolutely right. It's not too late to Invest in Ether or BTC. No one can stop Bitcoin. Also Ethereum has a bright future because of its technology. Lot of apps launched and coming on Ethereum network like Golem, Akasha, Kik, prism etc. Many countries tried to stop the use of BTC but still its price has increased and increasing day by day because people wants to use and using BTC and no one can stop them. So, hold your coins for a long term period. No need to panic when the price fluctuates.
Just remember "You have to face the waves to enjoy the sea."