I spotted several copies of THE THING WITH TWO HEADS at the Borders in the Cambridgeside Galleria last night while on my way out. $14.99. I already exhausted my fun money for the next two weeks, but maybe you would like a copy. I bet it's available at other Borders nationwide, for those without reasonably quick access to Lechmere.
I know you'll be overwhelmed with joy to know this.