Not really. They are determining who gets in the debates. They are determining who gets bucks from donors. They are pretty important. Now their meaning as to what is eventually going to shake out is probably small, but you can't blow them off as merely entertainment.
Trump doesn’t need the money. ¡Jeb! already has more than he needs. Cruz has some and will get more as long as he stays in the race. The rest are just delegate collectors for Yeb and will get what the GOPee thinks they need to give them to collect maximum delegates forYeb.