Based on the number and independence of the business units at Sony, such a comparison is strained at best. The real reason they shouldn't buy Disney is that it

Based on the number and independence of the business units at Sony, such a comparison is strained at best. The real reason they shouldn't buy Disney is that it would be an ideological step backward. Disney creates entertainment in the same way it's been done for decades. Apple is interested in how the future of entertainment will be produced/consumed.