[Caduceus]

Given my druthers (and roughly equal cost) I would request spiral bound as you can leave it open without stacking beer bottles on the corner-edges.

As we all know, beer bottles must be at least half full to keep a manual open and therefore a continual supply must be at hand. When they get below that critical point, a newly-opened beer bottle must replace the now less-than-half -full bottle.

Beer bottles sweat, especially near a computer that has been running for four or five days straight, which can ruin a good bound manual.

Spiral bound is the way.