A lot of what you said doesn't have anything to do with this discussion at all. I'm not sure why you think that I equate selling music with being bad, as I enjoy many popular and successful bands. I don't support bands that I feel become vapid in the interest of commercial appeal, which is my opinion of Watain's newer music. I honestly don't care about new Burzum or Burzum merchandise at all and Varg will never achieve the level of marketability that Watain and their record label have strived for, nor do I believe that he is trying to do that.
However, Dimmu Borgir is one of the most commercially successful metal bands worldwide, so I'd qualify them as well-off financially considering their broad international appeal, level of commercial success, vast music and merchandise sales, media appearances and level if critical recognition. Their albums consistently sell well and are well-received by the public in many countries. I don't know how much money they make exactly, but they are definitely one of the highest selling metal bands in the world.
Oh, and Peste Noire sucks, so I'm not sure why you're even talking about them. They have nothing to do with this conversation and their artistic evolution is incomparable with Watain or Dimmu Borgir.
You clearly don't get it. All bands have commercial aspirations otherwise they wouldn't sign to labels in the first place to, you know, engage in commerce. And why is it that the vast majority of European bands or bands whose first language is not English, decide to write lyrics in English? To spread their message to a wider audience, obviously. I guess everyone's a sellout.
Also, you fail to realize that bands naturally only gain more attention over the years through developing an increasingly stronger fan base and reputation. This coupled with a label more willing and readily able to further promote the band since there's a greater chance at making money and less risks. Also, it's inevitable that a band will change their sound over the years just as it is that their albums are likely to feature a more-polished production each time out. You can argue, that through this, most bands become increasingly accessible. But, in the grand scheme of things, black metal of any variety is hardly accessible to the average person.
And you've got to be kidding me, Burzum is aeons more commercially successful than Watain will ever be or will ever dream to be. Varg is the primary reason why black metal exploded and is able to have any real degree of commercial success. Guaranteed, more people own Burzum music and merchandise than Watain and not to mention, the name Burzum alone means infinitely more than anything having to do with the name Watain. And you were the one who brought up Watain's CDs being available in stores like target as if it truly means something. I made the point about a band like Peste Noire because I've seen their stuff at mainstream stores too. Peste Noire is not nearly as known or successful as Watain is, so what's the significance in your point?
And Dimmu Borgir is able to get by without the band members having to pick up second jobs, which is truthfully about as 'well off' as the average person. I'm not sure what world you live in, but you're incredibly naive to think that any extreme metal band lives a lavish rock-star lifestyle. Dimmu Borgir certainly don't and if they're amongst the top, how 'well off' do you think Watain truly is? They certainly won't get anywhere close to that rock-star lifestyle you envision them as having, by playing black metal.