This is the right time to buy because people forget the potential that the King of Crypto hold, that's why some prefer ALTS. It is always better to diversify, but BTC is a long term technology, it is not even close to its true usage, because we are lacking some knowledge on solving its transaction problems or our computer is not enough to handle its power.
As a beginner read and learn, and then always understand the opinions on both sides, most importantly, learn what's behind these technologies, many people are years old here but they don't know the technical aspects. That's why they are having a run for their money in the end.