PNB is having a half-price sales on next Thursday's 2pm matinee (December 19) and both performances (2pm and 7:30pm) next Friday, December 20. (The text only mentions the 20th, but I clicked through the December 19 link from the page below, and the tickets are calculated at half price. The offer doesn't include the least expensive tickets or apply to the facility fee (included in the price), and the price displayed includes the discount.
https://www.pnb.org/promo/pnbhalf
An adult and child can see the "Nutcracker" from the back middle of the Second Tier with excellent sight for under $50. A family of four can see it for less than $100.
Prince and Clara casting (as always, subject to change):
Maria Chapman and Seth Orza, December 19 at 2pm
Kylee Kitchens and Andrew Bartee, December 20 at 2pm
Rachel Foster and Eric Hipolito Jr., December 20 at 7:30pm
https://www.pnb.org/promo/pnbhalf