Yep, very pricey.
The bigger issue is what do you get? If your goal it to take an old school electrical system and make it solid state, this and the associated VPX box will do it. I consider this along the same lines as inventing the jet engine then strapping it on a biplane. In other words, way down the sub optimization curve.
Now consider the many designs out there to add power redundancy for IFR applications. You could then buy two of these (plus one or two VPX boxes) to do that job (or some combination of these and standard components) but that represents a boatload of money that could go to buying overpriced 100LL.
But shoot fire just my opinion, and biased by my fairly thin wallet….
Carl