It sounds like you got the "shotgun" repair method, but only because the ignitor was replaced along with the nozzle. The nozzle is cleanable on the Hurricane system, but if you are paying $100+ labor rates, it will be cheaper to replace it than clean it. The same thing may pertain to the other parts that were replaced, in that you just replace all of the likely parts instead of spending a lot of labor to determine the minimum number of parts that are needed.
If you would like a copy of the technican training tape for the Hurricane system, just drop me an e-mail personally and I will send you one (DVD). You may not want to repair the unit yourself, but at least you will know how to repair it.
Gerald