Well, I got the 18-250 in yesterday.
The Pentax box looked like it had been around the block a couple times, but inside the documentation appeared to be unopened and the lens itself was unscathed.
The glass was clean, spotless, and the resulting images seemed fine. Not jaw dropping, mind you, but perfectly adequate. AF seemed to be a little slower than the 18-55 kit lens, but not a deal breaker.
This will be my walk-around lens for now. Too many missed shots having to switch from the 18-55 to the 50-200 kit lenses. Those I'll be selling, saving up some sheckles for DA* lenses.
Maybe I'll just plant another money tree in the back yard for a K-7 body. That way, I won't have to change lenses!