I remember Second life and how it was so innovative for it's time but it did get boring after a while.
Even it's currency system was lack luster. Linden Dollars weren't really worth much but people found a way to convert them into bitcoin

Yes because the development of Second life also stagnated, bitcoin and the blockchain on the other hand still has a lot in of developments going on.
What new development has taken place in BTC in the last three years? It's taking years just to increase the blocksize a tiny little bit...