I'd say your are 2 b/c woth 3a potential in spots. More important to find products are your properties like fine/medium/coarse, porosity, density (thick/normal/thin) and elasticity (which is trickier to figure out).
I think a lot of people get a lot of useful information from a hair analysis and I don't think many people have ever regretted getting one done.
That being said, I've never got one and I don't feel like I've lost out or anything. I just go by how my hair behaves and learn what my hair likes through trial and error. Don't get me wrong, knowing your properties is good, especially when asking for advice, but I don't tend to choose my products based on my properties alone. I tend to go by which ingredients I know my hair likes and doesn't like.
So yeah . . . if you want one, great. But don't feel like you NEED one. Of course it's the most accurate way of knowing, but you can also just as easily work out your properties by how your hair behaves.