As noted on UbiBlog, Ubisoft is now accepting preorders for Tom Clancy's Rainbow Six Siege as Standard, Gold, and Collector's Editions of the shooter sequel that's expected in October. The Collector's Edition includes a backpack and other physical rewards to justify its $149.99 price tag, but the Windows version is listed as PC Digital, even though a steelbox case is one of its perks. The gold edition includes a DLC season pass, and preorder customers are promised access to the closed beta test. Here's word on what it includes:

Included in the Rainbow Six Siege Collector’s Edition are:

Rainbow Six Siege Standard Edition
Season Pass
Steelbox – Designed exclusively for the Collector’s Edition
CTU Operators Hat – Flat-brim snapback hat
Compass Carabiner – Black and gray carabiner with a compass and bottle opener
Operator Backpack – Military-style backpack with a padded laptop pocket. Comes with seven Operator badges that attach to the sides of the backpack with Velcro.
Art of the Siege Tactical Guide – Exclusive 120-page guide

The Art of the Siege Tactical Guide will provide you with all the tips and tricks to give you an edge over your opponents. With advice straight from the development team, the guide highlights each of the Operators and CTUs, weapons, and maps.