Not ready to give up the bottle just yet

I have not been giving Ben a bottle during the day, but give him one when he goes to bed. Today I asked him if it was time for bed, and he grabbed his blanket and the sippy cup and goes to the gate at the bottom of the stairs. OK... We go up the stairs, I change his diaper, and tell Ben to get in bed. He looks at his sippy cup and then picks it up and hands it to me, Then grabs my hand and takes me to the gate at the top of the stairs. He said Ba and then waited for me to go get him a bottle and then he was ready to go to bed. He just can't want to.