These things can be very situational and anecdotal. Yes the full $300 would have had some offset. In this case I had time to run the shaper, and create the pattern. Granted some of that time I could have been doing something else. However I would not have needed to take time to make two trips to the CNC shop, etc.
And I could have had the parts same day or next instead of a week later. In this case it was not a production item either. I needed two not ten or twenty. So there was no "mass" production time or money savings by having outsourced it.
Realistically It would have made a $200 difference on my end. But the general point I was making is that the Shaper, even at a fairly high cost, has a profit generating place.
And, Svar and Bohdan pointed out, additional non-monetary advantages.
Not saying the Shaper is right for everyone in every situation, just pointing out that it has place in the professional world. Having one wouldn't mean that I would use it in place of a CNC shop every time but it would be a good tool in the arsenal for me.
Seth