For everyone who's making the argument whether a $30 upcharge is worth it or not and comparing it to the value to a run through last year, you're forgetting a VERY important piece.
Last year you paid $x amount for a walkthrough, conga style, back to back, and missing half the scares.
For this you're paying $15 for a walk through, by yourself, completely alone, and probably getting the benefit of each and every effect and element, totally worth it IMHO.