Do you guys think we the investors will be less interested in ICO in the following years as we gradually learn that we might not get our money back if we are stuck with these coins? And the number of the good coins will increases and people have more choices to diversify rather than just put the money in BTC and ETH?
The ICO investment will give us huge profits in short term but as you said many of the ICO projects are failed that is due to not enough effort from the development if someone need to keep their coin alive they must have proper development and good contact support for the investors which will give their project to succeed and the investors also will get profited.But most of the ICO founders starting the project for just earning money then they leave their project stranded after got enough money so we need to invest on good ICO for earning profits.
The BTC and ETH investment need to be long term then only we can earn good profits but in this investment the risk is very less when compared to ICO investment so many people are investing on bitcoin and ethereum.So many of the unsuccessful coins may become extinct in some years or as you said by 2019.
I think not all altcoins would disappear. There are still some strong altcoins amongst a bunch of altcoins available now like Eth and Waves to name a few. ICO, on the other hand, has been really bad because most people are focused on bitcoin now because of its soaring price. That is why altcoins right now doesn't get that much attention.