Cloud Architecture: Build (IaaS) versus Buy (PaaS)

Cloud providers are introducing many new services to their portfolios.  So, organizations now have a decision to make regarding build vs buy.

Here are pros & cons for each:

PaaS / Buy: (pros) time to market, CapEx reductions; (cons) usually multi-tenant, will require skill-set updates, vendor lock-in, OpEx increases

IaaS / Build: (cons) familiar ITSM / ITIL model, CapEx focus, single tenant, existing skill-set, increased portability; (cons) slower agility