I see you kids don't know very much history and don't realize how bands like Opeth got relatively popular in relatively unreceptive places like North America. It wouldn't have happened without the internet, word of mouth, and developed, older online communities such as the forums at Dream Theater's site, their members' sites, and other strong communities like Megadeth's forums.
Opeth wouldn't be as big as they are now if not for fans of other bands like Dream Theater. Who knows, they might have even kept writing good music.