Originally posted by wadge22 I dunno. I think the used idea camera makes a whole lot of sense.
That's how I bought my K1 (not a K1ii: I got a real steal from KEH at ~$900 in 2020, bargain condition but it seemed/seems great to me). If it had cost $1800 or $2200, I simply would never have gotten it in the first place, no matter what warranties or bonuses were thrown in. And even if I had the extra $900-$1300 to spend at the time, I think a few $200-$500 used lenses of my choosing would serve me better than a warranty and a kit lens (though I fully understand that the 28-105 is a great lens).
I'm not convinced the difference between K1 and K1ii matters too much at all.
YMMV, as always.
If this amount is all you can muster in your budget, than that's the way it is, better than not having it. However, there is always some risk in buying used when dealing with such a complex electronic monster as a modern DSLR. The K-1 is very well constructed, but one never knows even then what it has been through.
At those prices, the cost of a new K-1 II represents one of the best bargains among pro-level FF DSLR cameras in the marketplace today. Its image quality and features, as well as design, are among the best available for still photography. A factory warranty might seem like some unnecessary item not worth much, and I've had many new Pentax camera bodies over the years which never required employing them. But I did have two Pentax DSLR bodies that failed some months after purchase, one of them being a very well-built flagship model. When it is needed, a warranty can be worth a lot of money.
The K-1 II was developed with some advancements, especially in terms of better high ISO performance. It has been shown capable of cleaner, lower noise imaging at higher ISO settings. But maybe this is something you don't need, as you rarely shoot using higher ISO settings.
It is much like the comparison between the K-3 II and the K-3 III. The K-3 III has been shown capable of cleaner, lower noise imaging at higher ISO settings, as well as its higher frame rate for burst shooting. But if you don't have need for these advancements, just go with a good used K-3 II, put your money towards the new DA* 16-50mm f/2.8 PLM lens and you'll have super fast AF and everything else that suits your needs, at quite a savings.