I am not a drinker. An addict. But I would imagine it all depends on what you feel you shpuld do. Does it make you uncomfortable having it so handy? How confident are you that you can know its there at your disposal any time you care to get curious? Are you wanting to keep it just to prove yourself? Or is it the value and feeling like throwing money away?
Whatever the case. It boils down to whether or not it will pose a problem for you later on.
If you think it may cause you to want to drink at some point. Get rid of it.
But again I am not a drinker. So I dont really know. Just thinking aloud I guess. Whatever you do. God luck and keep up the sobriety. 9 days is good.