It was a few years ago for me too, but it was about $5000 (and worth every cent!)
And as MadScientist said, you get some back in tax.
Some PHI's will cover part of it, you would have to shop around and weigh it up, depends on their waiting periods too I guess.
It doesn't hurt having the actual procedure (I had numbing drops and a valium), its just a bit uncomfortable and then your eyes are sore for a few days, but it is amazing walking out and being able to see PERFECTLY (almost straight away!)

The best part for me is being able to go to the beach/pool and be able to swim and see at the same time! LOL!
And there is no carrying around day (sunglasses) and night glasses, the freedom is fantastic