Smart bolsters their Big Bytes 50 offer with more data for your online activities. For only PHP 50, you can surf the web, stream music and videos, and have access to services like iFlix, Fox, and Spinnr for 3 days.
I recently purchased a 13 inch 128GB MacBook Air a few months ago (my first foray into OS X) and only recently did I feel the internal storage was not enough. To begin with, you get to enjoy less than that because part of it is allocated to OS X and installed apps. When the movies and pictures started piling up, I quickly realized that I need more space.