I guess it more depends on where you are touring and what time of year it is. I'm not so sure I would be a very good cold weather tourer. I just don't like being cold for endless hours. I do have leg warmers, arm warmers, base layers, tights, full gloves, wools socks, and jackets, so i could do it, but I'm a wimp

I don't mind a couple of hours of cold, it beats the trainer for miles any day.
My load list has been narrowed down to rain pants, rain/wind jacket, two short sleeve jerseys, one set of arm warmers, two cycling shorts, a pull over regular shirt, a pair of zippered cargo pants, and 3 pairs of socks and two pair of underwear.
Wrinkles rule the day since that's why compression sacks were invented, lol.