True, but bandwidth and lack of "raw" access (eg: b/w limited api) might make some types of migrations extra hard with SaaS. Good luck getting 1-10 Gpbs data t

True, but bandwidth and lack of "raw" access (eg: b/w limited api) might make some types of migrations extra hard with SaaS. Good luck getting 1-10 Gpbs data transfer from most public SaaS to your own datacenter without having to pay over and above your current fee for Internet access (eg: have a look at what it costs to get just a TB data out of S3 -- on any budget (or prime) dedicated provider, 10-50 TB of data would be included - per month.