It's out in its cheapest—and I think, best and most appropriate—version. I mean, the pulpy horror of The Troop available for seven bucks! Or nine, in Canada! But still!
Great googly moogly. It's actually the first book I've ever had released as a mass market paperback. And really, most of the horror books I've read have been MMPBs. There's just something about reading a horror book that way that fits, right? I mean, my folks used to buy me the Stephen King hardcovers when I was a teenager, for my birthday or Christmas (sometimes both; that King fellow is hella prolific!) and I loved them and appreciated them, but really, when it came to my own buying, it was mass market paperbacks all the way.
So if you've been holding off, what's your excuse now? You have none—NONE, I tell you! Go forth and purchase.
You can find links to your online bookseller of choice here:
THE TROOP WEBSITE