If you have the patience, time and pool to do it in, then go for it - i commend you. I have been taking my girls to swimming lessons since each of them was 6 months old....so nearly 4 years now . Every Monday morning, off we trot to swimming - and yes, like you i worry about the cost. But for me swimming is an integral part of any aussie kid growing up....
More babies in Australia should be taught how to swim given the rate of drowning accidents.
- it should be affordable too.........