i think companies that have made significant profits in the past might be uncertain about upsetting their audience or trying a new formula and failing
ofc this means they basically strangle the life out of whatever genre they're working in because it becomes obvious what and how to make the most money from a game in it
i don't think game development should ever become a numbers game, and i think consumers' interest in smaller companies who haven't had a chance to become scared in that way shows a lot
as far as old games go, i think they're only good if they actually have aged decently well. sonic adventure may have been amazing at the time of its release, but jeeeesus christ man. it does not hold up today. however, super mario world, for example, is still a fairly popular subject today.