I am inclined to agree with you for the most part, however I think eventually, it does have great potential to change the way we use smart devices and the 'internet of things'. With enough standardization of cheep, small electronic components, we'd have the ability to roll our own quasi-disposable devices using a combination of printed components and factory made items.

Here's a silly little scenario I am thinking of: it's Thursday, and I'm going camping on the weekend. At work I download a plan for a bare-bones cellphone. I pick the one I want from a publicly curated 'app store' for devices and push it to my printer at home which orders the standard parts it needs from Amazon. It knows I've got the battery I need already since it's still sitting in the RFID-equipped bin at home so that doesn't figure into the cost. When I get home, the case and simple keypad are printed out. I pop in the PCB substrate and my printer makes the circuit board the other components will sit on. On Friday I pop the e-ink screen and cellular chip and sim reader in the device when they arrive from Amazon and I am ready to go. On Saturday, when I drop my new phone in a puddle, I'm out about 35 dollars, but my iphone is still safe n sound on my dresser at home.