Stores hère don't carry dynamic rope by the foot. Wish they did. Haven't seen that for years. A shorter 10 mm rope is lighter than a full length one if you need a tougher rope but aren't doing full pitch climbing. Since this was about carrying for general travel a thin rope might be fine and short thin rope very nice, but if you do short rappels or fixed lines on gritty sandstone or sharp shale a thick rope with a thick sheath might also be good. The 9.2 mm shorter pieces on the other links for about $60 looked good for more alpine hiking etc.