Keep in mind that Amazon (and others) uses the &quot;roach motel&quot; model for networking. Easy to check in, not so easy to check out.<p>When we looked at S3 for some archiving use cases, that came up as a risk -- if strategically it made more sense for us to adopt Google, Microsoft, etc, we would need to negotiate significant concessions from a new vendor to transition away from Amazon or take a hit during that period. You always need to plan for the exit!<p>You&#x27;ll have similar issues on-premises (ie. dealing with EMC&#x2F;etc), but many people forget that cloud providers have their own gotchas too.