Exit row seats are now premium seats that have a surcharge.
Re:First-class air travel is in decline
by Scoundreller on Friday March 08, 2019 @01:30PM
(#19340506)
And far cheaper (last I saw was $50 for an overnight transatlantic flight) than an upgrade to the premium economy/business/first class seats (double fare or more).
Check on seatguru before booking any flights.