Should I try to wean my son from the bottle if he still sometimes wakes up in the middle of the night to eat?

My 14 month old son only gets a bottle right before going to bed at night and for naps, plus the occasional bottle in the middle of the night if he wakes up hungry. I've tried a pacifier, he just wakes up 1/2 hour later even hungrier and a little angry that he is still hungry. I've tried water, he knows the difference and refuses to drink it. The only thing I haven't tried is letting him cry himself back to sleep, even though I do give him a minute to see if he was just stirring at night or actually waking up. I keep hearing and reading how a baby is "supposed" to be weaned by one year. I'm feeling a bit behind the curve on this one.