I don't know why I love the effect but I do. Tilt-shift photography shifts the plane of focus away from its normal perpendicular position from the camera. I had hopes of making my own lens out of an old Canon lens my dad gave me and a blown-out, fat, Surly Pugsly inner-tube, but for the life of me I could not figure out how to get the back off the old lens.
Enter Johnnyoptic from Flickr. He built me a nice tilt-shift out of an old 28-70mm Tamron lens for a very reasonable price (i.e., waaay, WAAAYYYY less than the mega-zoom I am renting from National Camera).
I'm narrowing down the lenses that I want for the pictures I want to take:
Canon prime 50mm; f/1.8
Canon zoom 70-200mm; f/2.8
My new tilt-shift lens
And I could not live without my iPhone and its Hipstamatic app.