I've also bought WS which I didn't think was anything special.
Make your own! Really easy, MUCH cheaperand no fuss. I've made it using Ghiardelli white melting chocolate or white Ghiardelli baking chips (easier to find), broken candy cane pieces (pop in a Hefty bag and smash with rolling pin or OXO meat mallet. Add peppermint flavoring if you like.
Want the bottom chocolate? Use any variety GOOD chocolate. Semi swwet, dark chocolate, etc. Pour onto buttered baking sheet, first. Pop in fridge to chill. When set, add white chocolate mixture, spread on top and chill.
For under $10 you can make it as you prefer. Recipes online.