Your body needs the energy to properly digest food. So to get the most out of the nutrients you consume and your workout, eat before exercising or 30 mins after fruit, two hours after veggies, three hours after grains four hours after meats and poultry.
So it's not a matter of value, it's a matter of what you need it to hold. And a matter of affordability. The movies will be the biggest space hog. So if you only put the movie you want to watch next on the iPod touch, so one (or two) movies at any given time, you will have more than enough space with either 16 or 32 GB. People watch movies once (twice if it's really good); they do not watch a movie over and over again like listening to songs.
The iPod touch comes in three capacitiesâ8GB, 32GB, and 64GBâpriced respectively at $199, $299, and $399. These models, in ascending order, hold 1750 128-kbps AAC-encoded songs or 10 hours of video, 7000 songs or 40 hours of video, and 14,000 songs or 80 hours of video. While the iPod touch may not match the capacity of the iPod classic, a 64GB iPod touch that can hold 40 two-hour movies is nothing to sneeze at.