My best use case for iPad has been the ease of showing some paper or draft to my advisor instead of printing it out or sending it over email and hoping he reads

My best use case for iPad has been the ease of showing some paper or draft to my advisor instead of printing it out or sending it over email and hoping he reads it. In general, I find iPad great for sporadic use cases that complement my laptop-based use cases quite well. But often I will lament the fact that I am using a $600 device (32GB) just for sporadic use cases.