This is why martech is a sector still in its infancy 

The marketing software sector alone is expected to reach $20.8 billion by 2018, according to IDC (International Data Corporation).
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Vaughan defines a martech “Frankenstack” as glued together marketing tools and systems from different providers that end up a “mish-mash” of technologies that don’t really integrate. He said that marketers need systems that allow users a central view of data and that can improve decision making.
http://www.marketingdive.com/news/this-is-why-martech-is-a-sector-still-in-its-infancy/403609