There is a huge range in what people carry. I am pretty sure that some of the folks that I have met had twice as much as you have in that picture. On the other hand it surprises me that it amazes you that folks tour with half that. I am pretty sure I have toured with everything from what I would estimate to be maybe 3/4 of what you have there to less than 1/4 of what you have there. In all cases I had cooking and camping gear and was always ready for overnight lows well below freezing.

Note that my numbers are based on my guess that your bags and their contents are about 60-65 pounds plus food and water. It can be hard to guess based on appearance though. Am I close?

My camping and cooking bike trips have ranged from a high of 45-50 pounds base weight to about 11 pounds base weight. On my heaviest trip I didn't have a lot of crazy excessive stuff and at the low end, even at 11 pounds, I still had quite a few luxury items (pillow, nice camera, etc.).

I really enjoyed all my trips regardless of the weight carried, but going lighter and lighter has made the riding more and more pleasant. Not only is the lighter bike more fun to ride, but the simpler lifestyle imposed by the minimal packing is pleasant as well. That isn't to say that my current way should or even could be employed by everyone.

Bottom line pack in a style that makes you happy, but don't assume that more stuff necessarily equals more comfort.