I would like to purchase my own USB soldering microscope.
I prefer a microscope with a large DOF so that the complete IC is in focus.
And I prefer a larger MP cam, to enable electronic zoom which will enable a larger DOF.
Assuming 8x magnification is good enough for you:
The large lens holders that can be attached to table are quite good for a large field of view.
The head bands are not bad (with different focal length lens attachments, some have 2 lens mounts).