When I decided to stop drinking nearly 6 months ago, I had alcohol in the house, and its still here. I'm OK with it, but I prefer the bottles of wine to be unopened - half-full bottles would be tempting.
I keep it around because I want to be hospitable when friends or family visit, but also because I dont want to feel afraid of it.
I'd go so far as to say that if I didnt have any in the house I would actually buy some, just to have some in - not to actually drink.