I am looking to get a laptop to carry to work and use because I rather use a Mac than the PCs at work. As a bonus I'd also carry my laptop to Starbucks to do work, surf, and perhaps do some amateur video editing. I travel a couple of times a year (at most 3 times) and also plan on carrying it during those times. I have ethernet in my office and throughout the building there's WiFi. So most of the time I am carrying it from my house to the car, then from the parking lot to my office, so I'd say I'd be carrying it for 15 minutes per day. When traveling, who knows long I'd have to carry it . . . perhaps 90 minutes waiting in line, walking to get luggage, etc. Some say, using the 17" in economy is impossible on plane. The extra inch all-round makes it that bulky? Some say the extra inch depth makes typing more comfortable while some say it makes it less comfortable. Using both at the Apple store, not sure what they are talking about. Any comments/insights from users of both sizes for extended periods of time, most appreciated!