You want to know WHY World of Warcraft somehow has a reputation as "electronic heroin"?
1. People who don't play MMOs lump all online RPGs into the one category they refer to as World of Warcraft because:
2. It's great. It's the most polished and complete-feeling MMO I've ever played. The graphics are outdated, but art style much more than makes up for it. This isn't something a few screenshots will portray properly. The feeling of walking into Stormwind for the first time, hearing the epic theme music start playing and seeing the sun glaring from behind the spires of the cathedral. It's amazing what they have done with such a low polygon count.
The game is incredibly accessible, while still possessing considerable challenge if you want it to. The user interface is the best I've seen, being rivaled only by Guild Wars and Rift. (and runescape actually, the new UI is very minimal and functional) But RuneScape's controls feel extremely clunky and unnatural. This is my favourite thing about WoW, personally. The controls are amazingly responsive and tight. Your character has literally 1:1 movement with your mouse, while this may look unrealistic sometimes, it's hard to go back to a 'rubberry' control scheme. Rift is the only game I've played that has controls this good. (I'm actually rather looking forward to it. If your unwarranted stigma for WoW is THAT big, I at least suggest you try to get a beta key for Rift, it's looking verrryyy promising)
/rant