Hot much does it cost to get this printed? And does it hold the charging cable in place where all you have to do is slip the tablet into the dock and it connects?
Printing cost would depend on who you commissioned to print the dock. If you found someone local and could avoid shipping costs, it could be done very, very cheaply. (The dock I'm using is actually an early prototype from the same guy that wrote the Thingiverse post I linked to, so I lucked out and got mine for free.)
It holds the charging cable firmly in place; requires very little effort to dock, outside of making sure the tablet's centered as you lower it. It seems to be a little sturdier when docked in its case, but its still perfectly acceptable sans-case too.
I leave a dedicated OEM charging cable in my dock. In the prototype I got, the cable had to be kinked at an extreme angle to keep the connection point firmly in place. It didn't damage my cable, but making a habit of kinking the cable every time you used the dock probably would...
Of course, he may have found another way around this before he posted on Thingiverse.
I'll try to find out for sure...