In BC, Canada anyways - Gas is $11/GJ and Electric is 5.7cents/KWH. (There are approx 10 therms/GJ)
I have used baseboard heating supplemented with gas for 2 years and spend approx $300/year to heat my home. (The norm here is approx $1200/year) Most of the savings is due to heating only the rooms we use. I'm considering replacing the gas hot water heater with electric as well to eliminate the monthly gas fixed charge of $10.
It sure is nice not to listen to a noisey furnace and worry about filters, CO2 etc.