No, I don't think if 2017 is the best year for Crypto, I believe in the year 2020 the world of Crypto will be a better than 2017. Because in the future people will more understand about Crypto so making the demand for Crypto increase dramatically.
The year of 2020 sounds like it will be a prime setting for technology. Crypto better be huge by then or all the projects will be used for something else.