Oh, I forgot to mention, from your picture, the man had a holster bag, which screams "I have an expensive camera here!" I have a holster bag I used with my 10D with 28-135 IS all the time. It is a great bag, but only holds that combo and nothing more. The Domke looks smaller and is actually larger and the strap is more comfortable. If you are planning to carry your 10D with grip and 50 mm lens and a few more things, you will not regret spending the money for the Domke. There are some bags that are cool, like the Kata bags, but they are more expensive.