OP - you must have plenty of spare money if it didnt even occur to you that cost might be a reason people dont box raids lol.

For me cost is definately an issue, i have 3 kids and limited time so i cannot justify spending much more on gaming. Maybe if 10 man stuff was the pinnacle of wow and gave access to the best gear etc then i would try it for a limited time..maybe.
But 25 accounts is definately out of the question, even if it were free i think it would be a huge headache. maybe im just not committed enough