I'm building a wafer stepper. That's a machine that's used to make chips and LEDs. We're building the very first one of its kind now. I'm not sure what it'll sell for, but it's not something you typically get together on Kickstarter. I guess I'd be using it if I owned a semicon foundry or something.
The idea that you should "eat your own dogfood" doesn't make a lot of sense if the product is (to draw from my personal experience) an x-ray machine, mechanical respirator, semiconductor metrology tool or electron microscope.
Thinking about the larger issue, I think It's actually somewhat rare for professionals to consume their own "product". Lawyers, for example, are often discouraged from doing so.
We're building a survey app for dentists to give to their patients.
We also have a dental practice management app.
And an practice management education tool.
I've also worked on monitoring apps used by electricity companies.
I can continue, but this should do. Anecdotal, fair enough, but I'm using them to paint a concept.
Admittedly, this means that my description of what the machine does was cutting some corners. Ridiculously many, actually, but ok :)
...I cannot begin to imagine what's involved in vibration control.
I spend my days working on an ERP system. Apart from entering my weekly timesheet and the occasional expense claim, I don't use the system. If I wanted to enter payments and reconcile bank accounts, I would have become an accountant.
However, I use my side project http://www.3dprintingpricecheck.com quite frequently for working on my other side project which involves making 3D-printed geographical models (http://www.printablegeography.com).