Maybe because bitcoin value increase and more and more people discover it with wrong interpretation of it. Bitcoin was a good investment of both money and time. And I agree that, maybe other people should let go btc if they only think money and depend their daily lives in bitcoin. Its not a good perspective to have
As I am saying, bitcoin maybe the first, the foundation of other crypto currencies on circulation but bitcoin is not the best digital currency of all time, it has lot of problems and has a lot of spaces for improvement and upgrades. I think this is another plot of some people who want to shift the attention of bitcoin users to their own crypto currencies, this happened last year, and I will not fall to this again.
It's not about "falling" for it. You should always think and make wise decisions based on your own knowledge.
And off course you will have to learn about technical aspects of different coins and blockchain.
Good luck.