My interpretation of graduating in three years is that a uber-motivated scholar wants to bust his/her buns to get to a dental school to continue busting his/her buns to start working in the real world and will then have to bust their buns some more just to pay off school. Before they know it, they are 30 years old and have never stopped to have fun.
I'm an uber-motivated scholar, too, but a balance of school, work, and fun is the key to a healthy lifestyle! Personally, I'm all for a standard 4 year college experience-- I study hard, work weekends, take my dog for a walk everyday, go to my club meeting every week, and every now and then take a night off to go Salsa dancing.
I realized that once I stopped thinking that I had to hurry up and get through school so I could "start my life," I all of a sudden started enjoying the little things way more! Becoming a dentist is very important to me, yes, but I seriously hope that I won't let Dentistry be the only thing that defines me.