During our trip to Montreal I borrowed Mr. Risk's Lomo because I wanted a 35mm camera to use. It's just way cheaper to develop 35mm film so you can kinda go nuts and snap away. I try to pick and choose my shots carefully with the roll film because there's a constant mantra of "Twenty bucks for eight or twelve. Better make it count." playing in my head. Plus the closest you can get to a subject with a box camera is 2 or 3 metres which is sort-of limiting in some situations.
Overall I really enjoyed using the Lomo. The only thing I didn't like was having to guess at distances. I have very little ability to estimate distance and height.