I live in Canada and i ordered a kilo tt from BD. i guess i'm fortunate enough to be a 45min drive away from the border though.

as far as FG being cheaper, i'd say in the long run that yes they are indeed cheaper.
you will be replacing/maintaining fewer parts as mentioned. of course there is no upwards bound of how much you want to spend on your fixie
imo a fixie is a great way to get into biking. i started with a fixie and got my 'dale after a year or so.