Comment by patapong

I would argue that even resiliency is a metric that should not be overemphasized in early stages of development. I would rather have a system that suffers occasional outages than one that has perfect resiliency but has added complexity with tradeoffs in costs, complexity and thus development velocity. I think the risks of not being quick enough to product market fit in early stages is bigger than losing customers over short duration outages - except of course if the selling point is resiliency.

Of course this should not be overdone, but there is something to be said for single server + backup setups, and reweriting to scale + resiliency once traction has been established.