Looks like a nice set.  Should be able to get around $150 I would think.  I don't think the misprint adds any value but probably doesn't detract much in this case either.

In general there seem to be lots of misprints out there - I'm sure every product TSR produced has a misprint copy.  I've had misprint copies of some of their other books like Star Empires.  They are not common but in general only a curiosity rather than a collectible - it may attract 1 or maybe just 1 additional interested person but it probably loses the interest of a few others - especially in cases where the product is no longer complete.  Extra pages added is much better than pages missing.  The exception seems to be misprints in early items - your item would fall into this category.  No real way of telling aside from listing it on Ebay and seeing how it does.

Actually, looking at the page numbers, are a bunch missing or is everything accounted for but out of order/repeated?

Wish the pics you posted were not so large that we had to scroll to see it all.
At first I though you were talking about just extra pages...
Then I finally saw it has some repeated pages and missing others.

I think that some here might pay a slight premium for that misprinted book despite the fact it is missing some pages.
Besides; Other than that, the entire set is VERY NICE on its own merits.
Complete (other than the obvious problem pointed out) and in excellent condition and should command a very nice price on that note alone.

I agree with the posts above, in that I cannot picture it going for a rediculous amount, but not likely to sell for less than the $150 stated either.

If I was into misprints like that one and if I had the funds; I would go a little higher than $150 if needed to win it.
And I already have a minty complete OCE... without misprints...