I've been working on and off in supercomputing since the 80s. every system I've ever worked on has needed work to get to a certain scale. and that carries you

I've been working on and off in supercomputing since the 80s. every system I've ever worked on has needed work to get to a certain scale. and that carries you for a while and if you need to get past the next plateau you need to rearchitect again. rinse and repeat. so its not a binary thing. so unless you have some specific goal in mind, invest to get a little past where you need to be today.