Is media dematerialisation still a big deal ?
Lots of freelancer, student, young developer will say no and will propose you low cost solution for your business.
For that they will propose digital solution based on drupal / wordpress / oscommerce…
Is it a problem ?
If you have a small business, NO.
Small opensource and all-in-one platform will be sufficient for basic need.
There is no constraints in term of traffic, concurrency and traffic support.
More, you can grow a little with some technologies like cloud technologies or big cpu solution.
But for sure, these solutions are not scalable at all.
But for sure, SERIOUS businesses, dealing with big data, big traffic, and big money need SERIOUS solution in term in of security, performance isolation and behaviour. These all-one-solution aren’t SERIOUS solution.
There are plenty of serious technologies ; every specialist will have his own panel ; mine are java / tomcat, jetty, jboss / mysql(innodb), oracle / mongo, redis, hadoop / etc).
I will stop writing on the media dematerialisation subject. It’s no more a big technical deal, and it’s always subject of poor discussion and poor investment.
The subject is more about deploying right technologies for the right futur of your business.
I will continue to contribute on big data, big traffic, big and serious technologies 
You can find these contributions on http://www.techclub.fr