Right now there are more coins available in the market which gives you more profit than bitcoin.
Bitcoin price is also not stable.
All these factors affect its popularity ??
What you think, still bitcoin is more popular ?
Well, the last time I checked the market caps of cryptocurrencies, Bitcoin is still very much ahead of the second placer of the list. Bitcoin has at least 137 billion USD in market cap while the second one, Ethereum, has only at least 50 billion USD. That means the second placer is not even close, and has not even reached half of the market cap of Bitcoin. Needless to say, popularity is still with Bitcoin than in any single altcoin. And this will be the trend for who knows when.