The technology in the Cryptocurrency space will continually evolve and there will always be a next "Bitcoin killer" or a "Better Bitcoin". Then there will be a killer of the "Bitcoin Killer". This can go on forever and we'll be lost on the way.
The true value of the first Bitcoin lies in the legacy and it has intrinsic factors that can not be recreated again. What Satoshi invented would be impossible today. There is no CEO. There is no founder. There is no single attack point. Same cannot be said for the rest of the next generation cryptos.
The value of this cannot be understated.