Around here, the plumbers and electricians make about the same amount of money. It's not quite fair IMO since a plumber doesn't run as much risk of being killed or killing someone else when he makes a mistake.
On the other hand, plumbers deal with drinkable water and sanitation and where an electrician risks hurting one or two people with a mistake, plumbers risk making large quantities of people sick.
Both have always been considered "Pipe trades" so mabybe the pay should be close to equal but, when Foestauf talked about the $1500.00-$2000.00 a month, I almost fell over. In michigan, the average electrician and plumber both make more than double that working 40 hours a week.