Quote Originally Posted by Cozen
I'm not sure how the new 100mm macro L will affect the price of this lens.

The price of the non-L, non-IS 100mm Macro lens has recently gone up, not down. I just updated my spreadsheet with data on lenses for Canon SLRs. The previous price I had for the 100mm f/2.8 Macro was $525; it's now $640. I don't know how long ago I had updated the list, but most Canon lenses went up 10+%. I paid $401 + $15 shipping for a used one with the optional hood on eBay in Feb, 2008. (I later bought the ET-67B hood, which also fits the 100mm Macro. It's a lot shorter (and, thus, smaller in diameter, as well) and fits in my bag a lot better.