Totally depends on what you are making. I print multiple Kg/month (sometimes per week) and also am going through a ton of materials with the laser. It’s like arguing that a screwdriver is better than a wrench. Sure they both turn fasteners, but good luck changing your tires with a screwdriver, or opening your laptop with a wrench (well more than once 
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There are many things you can 3D print that would either be absurd to make or impossible with a laser, and the materials are different, while there are many things that are impossible/easier/faster on a laser cutter. If you only work in 2.5D then yes a laser is a great tool. but if you transition to full 3D it’s an even mix.
For instance the holster project I showed a few days back is a perfect example. I am making a very crude/quick prototype on the laser since I can get answers in minutes, but the final version needs to be watertight/and 3D filleted (and autoclavable so that means Nylon), so that would be crazy with a laser for final prototypes once the basic shape is done.
I will say the learning curve on 3D printers is steeper, and you constantly are battling a more complex of issues, but they are equally useful devices depending on circumstances.