Let's use my 2D printer as a predictor of the future. It requires really expensive proprietary cartridges for the raw materials (aka the ink), it takes a fairly long time to print most things, and the assembly of the more complex projects (books, photo albums, wall sized posters, etc.) is tedious.

By contrast, 2D printing to online professional printing services is much easier, generally cheaper, and the finished products are delivered anywhere I want quickly with no assembly required.

As a result, my family's use of our 2D printer has declined dramatically over the last five years.

With our subscriptions to Amazon Prime and Google Shopping Express, I anticipate our use of the 2D printer will dwindle even further and any desire to own a 3D printer to follow suit.