Wow thats pretty damn expensive. I feel sad for people who have bad "teeth-genes" so to speak.
In the past 1-2 years I was pretty damn lazy at brushing my teeth... Only brushed them 1-2 times a week if that. Mostly when I was going out.
I went to the dentists last week and got told that I have pretty much perfect teeth apart from some dental calculus which the dentist then removed (which took maybe 15 minutes). Apparently there was quite a bit of it since the last time I had been to a dentists and had it removed was like 4 years ago... But anyways after it was removed my teeth were back to being (almost) snow-white :P
Whole thing cost me around 80 euros or so, which is not all that bad. I might have some more checkups from now on, though :P Maybe once a year.
I was also smart and got my wisdom-teeth removed when I was in the army as you get free dental/healthcare during it