I did. I believed in him so much, I actually saw him once. And I'm not talking about one of those dudes in a bunny suit at the mall; I saw THE Easter Bunny skipping down the road in front of our farmhouse one morning.
I was probly 4, because I hadn't started school yet. It was about 7 in the morning and I was looking out the front window while Gramps was cooking our oatmeal...he'd just come in from milking the cows. I was watching the sunrise. The window faced east, so you didn't see the sun itself come up, but I loved watching everything gradually turn more and more shimmery-gold from it, especially the new asphalt road down at the end of the property.
So, I'm watching this gradual golden miracle happen a few days before Easter when, I swear, I see a rabbit the size of a man skipping down that road across the front of our farm, from the direction of the Jacobs farm on our left, toward Jensen's ranch on our right. He wore a silky purple vest and a pink bow tie, and he was either wearing a tan hat, or that was a thick tuft of light-brown hair between his massive ears.
As he skipped along, he swung his arms in an exaggerated way, and bopped his head from side to side, as though he was skipping to music...sort of skip-dancing. And he had something in one of his hands, but I couldn't quite make it out; the farmhouse was set quite a ways back from the road. I guessed it was a basket. Looked like it could have been. And it seemed like it had some weight to it as he swung it out in front of him, so I guessed it was a full basket, and that maybe he'd just filled it with eggs from the Jacobs farm.
I turned toward the kitchen and yelled at Gramps "The Easter Bunny!! Come see the Easter Bunny, Gramps!" But by the time Gramps got there and I turned back to the window, the Easter Bunny was gone! He hadn't been moving very fast, literally just toolin' on down the road, so he must have magically vanished. Just vanished into thin air. I guessed adults weren't supposed to see him.
I was so excited I was almost breathless, but I rambled off to Gramps what he looked like, and what he was wearing, and how he was sort of skip-dancing down the road in the increasing golden sunlight. And Gramps smiled down at me and tousled my hair, and said "Oatmeal's ready."
I must have passed that down to my daughter.... one year I went so far as to make little bunny "tracks" with flour going from the front door to her Easter basket. I was so sure it was going to be her most memorable Easter ever... she took one look at the "tracks" and asked me if that was flour or sugar I spilled on the floor. 
