Keep in mind prices vary widely in different areas.
On another thread talking about the going rate for a standard 200 amp service prices given ranged from $800 to $2,500.
This does not mean the guys getting $2,500 are rich, the cost of living in those areas may be high.
If plumbers are getting $120 to $150 in Pats area I would think it safe to say the costs in his area are high.
Bob