Im guessing you haven't sailed with a spinnaker. Well the truth about spinnakers is, yes they keep the nose up but then again if you drop the spinnaker is a big gust because your crew cant hold it well say hello water. It does keep the nose up but not that much. If your out for fun and you have a bit of money to spend then go for the spinnaker because its a great thing to learn and you will have alot more fun on a reach plus you can do the wild thing. The bad side to a spinnaker is it costs money, you dont sail as fast up wind (close haul) and you point higher down wind (reaching) But then again you gain where you loose speed. Its a 50 50 split to go or not go so flip a coin!