I recently went through dealing with some standard legal agreements for a film project. I never met our lawyer in person, it was all telephone and email.

But when it came to signing documents, that had to be done on paper. And notarized, which was a simple trip to the UPS store. And the originals mailed around, which was a hassle. The parties involved don't even all live in the same hemisphere, so there were some annoying shipping times.