It was $20/month in case you don't remember, with some probably going with yearly $99. Sony is more interested in PS Plus anyway:
And you can't compare PS Plus to Xbox Live, the PC version is worthless and you pay nothing.
Sony Made over $12 Billion Through PSN in 2019, its Second Biggest Year for Revenue
Sony made more than $12B in PSN revenue in 2019, including from sales of digital games and add-ons, as well as subscription service memberships.
www.playstationlifestyle.net
Let's not bring the war chest again, MS is $110B vs $78B Sony. Until we see similar, massive acquisition like Sony's $229M to insomniac, and the head of Xbox studios changes his mind about minor A-AA games in favor of big AAA games, don't expect Sony's pure dominance will magically disappear.
And please let's not talk about that "AAAA" game.