Why did Borland fail?
I used Delphi for more tan 10 years, so this is what I believe it went wrong:    * They lost Anders Hejlsberg
    * Free compilers got aceptable.
    * Lack of back compatibility, new VCL components from  one version weren't compatible with older ones, every new versión require to biy the new components.
    * To expensive.
    * No new books to learn Delphi, they are to old.

I'm still using Delphi 7 for some projects.