I have seen a lot of beers that have been corked and I can't really understand what the significance is. When I tried to look it up, most of what I found is just related to how to properly store corked beer and similar means, but nothing really answering my question.  

I am trying to figure out what corking a beer actually does to it and if there are any real benefits.  
Is it simply a style choice or is it there for a reason like it is for wine bottles?  
Does it actually have an effect on the beer's taste, quality, etc?