Wow, $10/ft is high! We pay around $40 for a 8' Scotch Pine at our local place. Spruce and fir varieties are a little more, and large trees (over 10') are priced higher as well.
I don't like buying from the big boxes because those trees are cut so far in advance. Fresher trees mean less drying out and fewer needles to clean up. But I'm not sure I'd pay twice the price for a fresh-cut tree.