No. We tried that and frankly we did not like the challenges that can present.
We know many companies do that and use your money as their working capital, but we do not want or need that business model.
If you see it on the system and it can be orderred*, it means we have the inventory to provide quick fullfllment.
* Exception: 3D prints can be ordered, but are printed on-demand by a 3rd party and will be shipped following inspection and finishing.