There are a lot of things you could easily do right now that you don't, and not because of laziness. Like power generation. You could generate your own power, right now. No new tech is needed, everything is on the mass market. Generac will happily sell you a generator sufficient to power your entire house. You can even get them so that they feed off of the natural gas line, and thus you don't need a separate fuel contract. What's more, this isn't rare. Generac sells these all the time as backup generators to people who live in areas prone to power failure. People drop 4-5 figures to have everything set up so that when line power dies, they stay powered. On the bigger side of things, data centers buy huge ones to make sure their computers never go dark.
Ok well these places already have generators. They are installed, ready, and capable of providing power. So, they go off the grid right, generate their own energy? No, basically never. Well why not? Why spend the money for the backup and not just use it all the time? Because it is cheaper to buy line power. Those generators, impressive as they may look, cannot compete with the behemoths that produce line power. The massive plants with multi-stage turbines just do a much more efficient, and thus cheaper, job of generating electricity.
This holds true for just about everything. You find that the cost to produce something at home, using equipment of that size, is just not near as cheap as producing it in large quantities using big industrial equipment.
So perhaps we will see the day when 3D printers truly can print anything (I'm somewhat doubtful, it would really take a technology advancement so much as to be a completely different thing) but it is likely to then be a luxury, not the way everything is done. You would be able to have your 3D printer/replicator/UC/whatever print you something and have it right away, but the cost in doing so in terms of materials, energy, and so on would result in a product more expensive than if you ordered the same thing from Amazon. So those that have money might use it for convenience, or to get things more to custom spec, but mass production is still likely to be the thing.