I just came back from the Barnes & Noble plaza on Niagara Falls Blvd. in Amherst (north of Boulevard Mall) and was shocked to see a brand-new Christmas Tree Shop on the north side of the plaza. I'm originally from Massachusetts, and these stores are a huge draw for lots of shoppers. They have a big selection of deeply discounted stuff (mostly imports).
The one on NF Blvd. is not open yet, according to the chain's website, but I expect it will start up before Christmas. If you're planning a shopping trip to the area, it's something to keep in mind.