Get an iPad. Most of the major studios here in portland replaced their printed portfolios with them because they can be continuously updated with new content and are cheaper in the long run than printing.
Not to mention, after viewing images, the iPad doubles as a reader, so contracts can be read over, edited, and finalized. Thus eliminating more paperwork. I was talking to a wedding photographer, she said an iPad is generally more impressive than a printed portfolio, because of how much more she could put on it, how vibrant the pictures looked, and she said that she hardly does printing anymore, mostly for the parents. The couples usually just put the images up on facebook. So if it's going online mostly, why show printed images?
I'm not saying an iPad is better than a print, it's not. But times are changing, and anyone would be a fool to deny it.