Well, it comes assembled. And for assembled printer it's pretty cheap.
It also comes with a stock enclosure for even heat distribution.
Leaving the backlash issue aside, if I personally had to buy another 3d printer again, I definitely wouldn't get a SD4 for myself.
There are 3 reasons:
"Actual cost". The things I had to buy later to replace or upgrade something in it to get it to work properly add a lot to the cost of the printer itself.
1) As an example, I had two stock SD4 power supplies die and had to get a replacement LED power supply.
2) I had to take out the gantry and epoxy (didn't have epoxy, had to buy) the rods in place because they weren't properly glued in place in the factory to begin with. I'm not the only guy who has had this happen to him.
3) Had to buy a multimeter and fix the VREFs on the motherboard because they weren't correct.
4) The stock heat pad is smaller than the aluminum bed, so utlizing the whole (not even the whole, like 17cm) of the bed without objects lifting and warping seems impossible.
And a lot of other things.
Basically poor quality on some parts of the printer and poor assembly in the factory which might cost you some money and time to fix yourself.
Second reason, the knowledge you need to do all of the above upgrades you can just use to get and assemble a 3d printer kit like Prusa and make an enclosure for it yourself. Still will spend less extra money.
And third reason is time, doing all I mentioned above you can just use to assemble a 3d printer kit and you will probably still have spent less time. Or just spend that time collecting more cash so you can afford an Ultimaker.
Again this is just my personal experience and opinion, all I can say is if I had more money I'd just get an Ultimaker which is a similar cartesian printer but with some quality, or get a Prusa i3 kit.
Some incorrect settings in the program's presets for SD4 and outdated wiki was also frustrating, though the helpful community has most of the answers.
Solidoodle 4