I pack ultralight backpacking because I feel every oz on my back. The light pack makes the hike so much more enjoyable.
I pack much heavier on a bike tour because all the weight is on the bike and I have some really low gears. The extras that I bring make camping more enjoyable for me. I bring my big tent, more versatile cooking gear, little speakers for music, a real pillow, and more clothes options.
Works for me.