Under the summon monster spell it list the term EXPENSIVE COMPONENT and specifically mentions wish. The wish spell has a ridiculously expensive component. Can a developer give a numerical value for expensive? Only reason I ask is expensive is rather vague and the only thing I can judge is expensive would be the cost of casting wish or higher. I realize this is unrelated to unchained but in a way it is what with the Summoner class being "chained" down, beaten and humiliated publicly.
p.s. I looked all over for an answer to this and got vague unofficial answers. You would think this would have been errata-ed ages ago.