I think this is a bit like children and veggies!
They will eat them if they have to but they prefer to eat pizza/chips/biscuits, etc. lol
I have a running battle with slugs in my garden as every new plant that I put out just gets decimated by the little blighters!
I have stopped them getting at the letuces by using a small plastic raised bed and putting copper tape all around the edge. I have also used it around pots of particularly expensive plants and it does work.
http://www.pestfree.co.uk/slugtape.htm
Wilkinsons stock one that is a bit cheaper.