T2 Lite and Blackbird are certainly less expensive options. Still, the major cost is the logic board because there are no economies of scale (but the CPU cost,

T2 Lite and Blackbird are certainly less expensive options. Still, the major cost is the logic board because there are no economies of scale (but the CPU cost, compared core to core and cache to cache, is actually competitive with x86: IBM makes those in rather more volume than Raptor and others manufacture OpenPOWER boards).