That video is essentially the 'Chinese knock-off' of the makerbot/reprap. (Nothing against the Chinese!) It's a more elegant and striped-down design.
Makerbot, I've got their discontinued 'cupcake' 3d printer, rather than going cheaper is making bigger models for bigger money. The cupcake was ~$1k a couple years ago and their cheapest model is ~$1.5k nowadays. I think that printer in the video was a similar price, as of a year or so ago.
You can build a reprap yourself for hundreds of dollars if you are inclined to do so and once you have it at a 'bootstrap' level, it can build the rest of itself, itself. Nice! The plans, even for the makerbots, are public domain. The biggest cost is in the electronics.
The biggest downside is that this tech is still in the hobbyist phase and not ready for prime time. If you have a problem, you are fixing it yourself. But with makerbot/reprap, there is a big community out there to help. I'm ditching a makerbot 'party' this afternoon to get some other projects done...
Some printers run smooth, some are wonky. All require a lot of TLC and hand tweaking. That has been the downfall for me. I don't have the time to truly sit down and tweak the hundreds of settings in the software to get a perfect print each and every time. A print can go for hours and then in the end phase, the smallest glitch can destroy all those hours of work. In that regard it's much like the 1st gen of 1x cd burners from nearly 15yrs ago. 5 mins left on a 1hr burn and, oops, buffer under run and you've got a drink coaster. With 3d prints, the bad ones are less useful than a coaster.
It does prove that the tech is getting there though. If you have another decade to wait, then 3d will be much more ubiquitous. If you have over a grand and lots of time on your hands, then jump in now, the water is nice once you get used to it.