This is a literal way to see it but for analist dominance is a bit more light...
"Market dominance is a measure of the strength of a brand, product, service, or firm, relative to competitive offerings. There is often a geographic element to the competitive landscape. In defining market dominance, you must see to what extent a product, brand, or firm controls a product category in a given geographic area."
This fits the PS4 case in UK.
no it doesnt.
not even close.