Updating StubHub availability from yesterday (lined-through price on left is from my post of yesterday except for NLCS Game 2 onward, which is price from this past Sunday; price at right is from right now)
NLDS
Game 1 - 3,014 left starting at $95.90 2,996 starting at $94.95
Game 2 - 4,941 starting at $72 4,915 starting at $69.95
Game 3 - 5,073 starting at $70 5,079 starting at $65
NLCS
Game 1 - 2,695 starting at $124.99 2,689 starting at $124.99
Game 2 - 2,453 starting at $124.99 2,491 starting at $124.99
Game 3 - 2,698 starting at $137 2,731 starting at $137
Game 4 - 2,440 starting at $149 2,463 starting at $149
World Series
Game 1 - 2,467 starting at $480 2,486 starting at $480
Game 2 - 2,403 starting at $480 2,422 starting at $580
Game 3 - 2,407 starting at $500 2,432 starting at $500
Game 4 - 2,397 starting at $580 2,416 starting at $580