The easy answer is the cancellation line is not AS crazy as in the past. I’ve seen Hamilton twice, both times using the cancellation line. Most recently (2-14-18) I was walking past and the cop that controls that block herd us talking about the show. He said “tonight’s the night...short line.” Forty Five minutes later, just before the curtain, we were ushered to our seats (Center orchestra, Row F, on the aisle). The cost $219 each.
Cancellation line tix are 1) unclaimed lottery tickets, 2) “House seats” (seats reserved for visiting VIPs), and 3, standing room that are not used by cast members.
I’ve walked by the theater a number of times this year and the line never seemed long. All that said, I think one needs to use a lot of common sense...during Christmas week...Hamilton tickets will be hard to find. A quiet Tuesday night in winter.... worth a shot.