I understand the purpose of doing this, but in most cases I don't see any extremely simple way to implement it. Lots of decisions tend to revolve around whether

I understand the purpose of doing this, but in most cases I don't see any extremely simple way to implement it. Lots of decisions tend to revolve around whether the development/maintenance time spent doing something justifies the efficiency provided by it. Especially if you're building a minimum viable product, if something on a server responds 10ms later than a queue implementation, but takes 1 hour to implement instead of 5, I am inclined to go with the 10ms delay.