Here it is... dirt cheep (175 new) at that.
Alone the bike is not that heavy, but start adding tools, clothing, a 3 pounds lighting system, etc and it gets quite heavy...
Why did I get a mountain bike... well because 1. It was cheep, 2. If by hybrid you are talking MTB hybrid, I hate major upright sitting, 3. A road bike (actually cyclocross) is too much money, 4. I had nice tires, racks, etc and I knew they would fit, along with some new stuff. 5. MTBs are great for a few things... jumping curbs and going down stairs, dodging wrong way cyclists, riding in the dirt (shortcut). 6. MTBs are basically bomb proof... and I ride MTBs very hard...