Originally Posted by philbaum
Seems like the Pentax 18-250 was redundant with the availability of the Tamron 18-250. I suspect that the sales of the Pentax version didn't justify keeping it in production. The periodic threads on whether to buy one or the other, usually favored the Tamron original because of the longer 6 yr warranty.
Or the super telephoto is replacing it.
Also, at Tekade.de, the 18-250 'suffered' a big drop in price, only Pentax version. So it may be in its way to be discontinued.