I know that HLS is among the top 5 law schools on ratings, there is a certain image, prestige, and level of success to attend such a school. I imagine being a HLS grad opens doors to unique opportunities (e.g. jobs) and has wide range of resources for one to access.
It's really expensive, and other law schools teach basically the same stuff.
But, are there other reasons why HLS is a desired destination? Why Harvard?