Hardly. Sergio Leone reinvigorated the Western genre. Compare A Fistful of Dollars by Sergio Leone to The Quick Gun or Bullet for a Bad Man both by R.G. Springsteen and released the same year. There is simply no comparison in terms of style or pacing. Wife wants to go to dinner so I might add some later.
Correct me if I'm wrong, but I thought another aspect of the term spaghetti was also how red the villains' skins look in the movies, at least the Man With No Name trilogy they look bright red
Eastman Color for the win! I hadn't heard that before. I thought the term was strictly descriptive because the creative teams were mostly Italian/Spanish. Filming locations were in Italy and Spain as well.