What is worrying me more is that we are all stuck on idea of being locked-in to any vendor. Why can't we focus on innovation instead? Take Instagram for e.g. th

What is worrying me more is that we are all stuck on idea of being locked-in to any vendor. Why can't we focus on innovation instead? Take Instagram for e.g. they started with AWS right? Then moved on the real hardware within few weeks (if I remember correctly) after acquisition. I understand, cost of the unseen problems are high, but it might be good idea to remember it also much depends on delivering speed.