Of my 3 favorites, knives, guns and flashlights. The largest investment is knives, then guns, last(but not least!) lights. I have several blades(Micro-Techs) that costed $350 or so. I have one handgun that set me back $1000(Kimber CDP II). I just recently received a Surefire U2, and that qualifies as my most expensive light. I would say at least $1000 in lights.:naughty: