I was in one of my local camera shops yesterday talking with the owner about macro lenses (I was looking for extension tubes and good 50mm second hand - no go there - seems the second hand market over here is very tight - it comes in, and goes out the door again within days).
We got onto the Tamron 90mm lens and I said how I was very keen on one - so what was his price (its been under AUD$600 for a months now)? The answer was ~AUD$800 - What?
He stated that Tamron were dumping old non-motor Pentax mount lenses for the SDM version. Effectively because Canikon mount lenses will all have motors on board. Hence the price rise.
Has anyone else heard this story? 'Cause if its so, I'm putting in my order now......