fransams: If you are a Pro, and photograpy is your job, you should have to work at least about 1800 hours a year. Then you can do about 50 weddings or other orders per year. So US$ 1500.- is more realistic. There is no reason why the client should pay for an 8 month holiday each year.
And if the Pro would not be a Pro, would he/she not have a car, a computer and internet?
Assuming you can get 50 weddings a year, I agree to an extent. Although factoring in vacation, stat holidays (which you don't get), sick days and what not, let's assume 46 weeks of the year or $69,000 based on $1500/wedding. As a gross take home salary, that's reasonable, since you have to pay all of your own taxes and whatnot that factors into the 15-20% benefits most employers have to pay. But start adding the business expenses like equipment, studio space rental, advertising, second shooter, cost of goods (printing, albums, professional services) and guess what, you're likely pushing back up to the $3000/wedding.