Warren Buffett's "overpriced" acquisition, Precision Castparts (PCC), is now estimated by Barron's to be worth approximately $100 billion, nearly triple its $37.2 billion acquisition price in 2016. PCC produces complex metal castings that are in high demand for engine turbine blades and natural gas turbines needed for AI data centers. This week, GE Aerospace acquired PCC's competitor, Consolidated Precision Products, for $11.75 billion, further highlighting the value in this sector.