Ringing in the new year with $15 or less?

Cristalino ~ $7.99
Spanish, Cava.
You have your choice of Brut, Extra-Dry, and Rose. If you are looking for more traditional go with the Brut. If you are looking for something sweeter then go with the Rose. Drink straight or mix up some lovely cocktails!

Segura Viudas Brut ~ $10.99
Spanish, Cava. (I reviewed this Cava at Arts on Foot this year.)

Dried apples, marmalade, with minerals and a hint of spice. More earthy, rustic really, than the Cristalino Brut.

Zardetto ~ $14.99
Italian, Prosecco.

Crisp, dry, and fairly acidic with tart apples and minerality. I know several people who swear by this Prosecco.