This is true for team based implementations that get out of control. From smaller organisations or one off uses this is valid. At this scale, there are also a number of third party hosting services that simplify and lower costs further. For just team collaboration, this is worth considering.

EDRMS licenses and ongoing maintenance fees are punitive in comparison. However the costs of SP depend on complexity of your geography; functionality needed ; reliability needed; how much you do inhouse vs external

This is a recipe for disaster – you really need good IT infrastructure (we don’t do this) and information design (we do do this) .

SharePoint has a very different content and capability footprint - see diagram below based on our SharePoint iWorkplace designs.