WH are another set of systems. think of them as a parallel universe were moons dont have minerals and no ICE anywhere. where the sun affects ur atributes! where rats are smarter than most players and stronger.

u can make huge isk there killing them but the WH difficulty is extreme. high ones need carriers remote rep. each other to survive in sleepers sites, but ofcourse the rewards are huge.

plus, if ur corp and ally live in one imagine a system under your control dont even have to pay sov. :)