A bit surprised I did not already see a thread about this. As seen by e-mail, KEH is offering 15% off all Pentax gear until 23:59 tonight with the coupon code PEN09E.

For example, you could get an "EX"-grade 645Z for under $3,800 after the coupon code.
Cameras here - Lenses here - Accessories here

[allexinwonderland]

Anyone have experience with a BGN rating? The coupon code appears to still be valid

[shardulm]

Have had good experience with them so far. But I hate to pay tax and shipping. So most of the times despite the 15% off the total just levels up to the list price.

[Church Key]

I got a BGN K1000 from KEH off of fleabay. It was clearly unusable due to a de-silvered prism. Eric did a CLA and a prism replacement for $70, which is what I paid for the camera w/shipping. Never again from KEH.