<p>With my K20D purchase years ago, I bought these (Pentax PE50135DA SMCP-DA* 50-135mm f/2.8 ED (IF) SDM Autofocus Lens for Digital SLR, Pentax PE165028DA SMCP-DA* 16-50mm f/2.8 ED SDM Lens) fast zoom lenses. Both my lenses failed like so many others did. Unfortunately, I was traveling a lot and not on the 'net, so I was unaware of the widespread failure of these lenses.<br> Clearly I'll never get the $1400 dollars back spent on these lenses. But I also get no use out of them. Is it worth repairing before sale, or should I sell them and leave the repair to the buyer?<br> I'm cleaning out the camera closet and these sit on my desk as reminders of a bad purchase.<br> Thoughts?</p>