B2B is kind of weird in advertising - you are still just selling to a person. So even Facebook advertising is used in b2b because targeting by job title/interest area is strong there.
IMO there isn’t much of an upper limit, as long as roas is decent the limit exists elsewhere (manufacturing, people, etc) and any gains in those areas means more advertising spend is viable.
IMO there isn’t much of an upper limit, as long as roas is decent the limit exists elsewhere (manufacturing, people, etc) and any gains in those areas means more advertising spend is viable.