When now you are better off going in projects that are like early eth for example koinos which the devs work relentlessy on daily as you can see on github but its still so cheap as eth was day1 so this is a chance to make $100k from $100 while eth is not only making the rich richer
And the answer is simple because people still believe they can profit from the Google stocks and the same is true for ETH, now can you get profits with other coins similar to ETH? Of course, but the risk is going to be many times higher, and many people prefer to avoid risks as much as possible.