I actually have two Triumph's, one is about 2.5 years old (a 9500) and the other is only about 8 mo. old (a 9600 with remote display). One is for when I travel and the other I keep at home. If I would of had something like this when I was growing up I'm positive my dental visits would have been a lot better. And yes the brush heads are expensive but you're only changing them every 6 months so $20/3 should last you over a year. When you look at it like that, they're not really expensive. Besides, if you keep an eye out online you can find them a lot cheaper.