428-piece, 1-foot cube, $55, 4 minifigs, 1994: https://brickset.com/sets/6571-1/Flame-Fighters
540-piece, 1-foot cube, $69, 5 minifigs, 2022: https://brickset.com/sets/60320-1/Fire-Station
LEGO just has a much much larger catalog now than they did back then (200 sets vs 800 sets.) But the classic style sets are still there for you, if that's what you want.
Those outward-sloping windows in the 90's set were the bomb though, useful in so many cool applications - (star)ship bridges, towers, and the like. :D
EDIT: still, even if I have a weakness for even older fire sets, I acknowledge that the modern lego fire stations are very good toys. My son has spend countless hours playing with the 2016 version [0], which is incredibly playable, and whose fire truck is the best.
A modern ~550-piece set, also from a line aimed at kids, not one of the adult-aimed models: 3 minifigs, fills 1/3 cubic foot at best because 450 of the pieces are little 1x1 and 1x2 plates or similar. Finished set's too small for even kid hands to get in and play. If it gets messed up more than a very tiny bit, you'll probably have to re-build from scratch, because the construction is... very CAD, I guess. All surfaces clad in smooth bricks if at all possible, making adding on awkward.
The modern ones do have more cool mechanisms and gadgets, though. Also they include extra pieces for the small ones now, and more sets come with a brick tool. Those are all nice changes. But the sets themselves seem to be tuned for inflating part counts and looking nice on a box, not for play.