I believe it's a talk of volume as the price is somewhat ok within the range of $40k to $60k. If the price rises so high above $100k, it might scare many who will think it's too late away.
I don't think that higher prices can scare anyone! We have many people who start buying at higher prices (what do you think who bought the top at +$60k this time, and at $k20 in 2017?!)! If we can think about Bitcoin at $100k, then this would be a good moment for entering, after all, it's x2 your investment.
Bitcoin is an ideology because it's about economic freedom, about handling your own business on a decentralized platform, where all the rules are the same for everyone! Not just because the price is volatile and to many speculations... Bitcoin stands for something more than just a value, the value that is constantly rising is just a positive return to all early supporters!