Muralman1...My CI D200 amps have a "hefty" linear power supply, but I doubt that this sort of power supply is essential to a good power amplifier. Performance of the power supply is what matters; not how it is mechanized. Perhaps your experience with switching power supplies is limited to poorly designed ones that are sometimes used to reduce costs. A well designed regulated switching power supply does not need the huge capacitors that seem to turn you on. In fact, adding capacitance will often degrade such a power supply, as I once discovered. It turned into an oscillator!
In my field of work we need a 30 volt DC supply to power our equipment. When I began this work, decades ago, we used a slightly-modified welding supply which stood on the floor and weighed well over 100 pounds. You would have loved it! Although we later used smaller "bench" type power supplies, they were also brute force unregulated supplies because the chief engineer, although a genius in some regards, was in the dark ages about power supplies. He retired. Now we use a thoroughly modern supply which is 2-high rack mount in size. It performs better, and costs a lot less, which you, as a taxpayer, should appreciate.
In my field of work we need a 30 volt DC supply to power our equipment. When I began this work, decades ago, we used a slightly-modified welding supply which stood on the floor and weighed well over 100 pounds. You would have loved it! Although we later used smaller "bench" type power supplies, they were also brute force unregulated supplies because the chief engineer, although a genius in some regards, was in the dark ages about power supplies. He retired. Now we use a thoroughly modern supply which is 2-high rack mount in size. It performs better, and costs a lot less, which you, as a taxpayer, should appreciate.