I would seriously consider purchasing such a book.
It would depend on the way the encounters were done though. If it is just a slightly dressed up monster entry for combat, then I do not need that.
But if it had both combat and non combat encounters, and put alot of detail into listing situational modifiers and DC's for various skills that you could use in the encounter, then I would buy it. I would love to have a set of combat encounters with obstacles, cover, difficult terrain, heat damage from the nearby lava, concealment modifiers for the current weather, and the break DC / Hardness for the bridge, and whatever else could be handy.
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