

They could sell them at a loss assuming the average Steam outlay per device exceeded the loss. This figure would be dragged down by people buying them as generic portable PCs, using them solely with emulators, using them as drone controllers (apparently the Ukrainian military do that), and such.
About time. The PSP and Vita were beautiful devices that gave a great playing experience. Sony obviously knew how to make a good portable, and throwing that away was a big mistake.