I agree, year 2017 is the best year that ever happen to cryptocurrencies not just for bitcoin but for the rest of the alts. Comparing this year to last year is not comparable at all since current market for btc and alts is way far from last year and I believe that many people had been luckier last year because of cryptocurrencies growth. However, for this year 2018, the game isn't over yet and just hoping it will make another history before the year ends.