I am in the weird position of owning two DA* 50-135 lenses. I preordered one through Adorama back in April, and then bought one from B&H when they had them in stock a few weekends ago. I immediately received the one from B&H and opened and used it. It is a wonderful lens, my best zoom by far (and I own 8 in the K-mount). I recently shot a wedding with it, it is phenomenally better at accurate exposure than any of my lenses (including the primes). Sharpness is apparent even at f2.8 and from f4 and up, it is a razor.
Then last week, my preorder from Adorama just showed up at my door. I should have canceled the order, but actually forgot about since I've been so busy. The lens is still in the brown UPS box completely unopened from Adorama's warehouse. It was shipped 2-Day Air - less bumps on Air shipping.
So, I am looking to sell the brand new one at my cost. I paid $850 from Adorama. So with shipping to anywhere in the US, it would still be under $900, which is a good deal since it looks like they will now be offered at $1000 - if you can find one
Please let me know if you have any questions. I am in Tucson, Arizona.