We do care about the rock/metal genre in particular, don't we? And man... Maiden!In all genres.
For me, it's not relevant. I might disapprove of the business aspect of stealing someone's song, like I think it's unfair of Steve to steal music from Beckett, for example. But that doesn't affect how I see the final product.It's not just about issuing. It's a process inside, having effect on how we (dis)like music. But yeah, I like to "issue" (about) it as well.
Not to a lesser extent, Purple were more of a live band than Led Zeppelin ever were. In fact Purple always made their living so to speak as a live band ...take Long Beach 1971 show for example....4 songs, 70 min. They were far from a simple rock band....To a lesser extent, what I said also goes for Deep Purple. Many of their studio albums sound very flat, but they released their records so that people would go and witness the tense energy created by Blackmore, Lord and Gillan. People didn't go to the gigs to check off Smoke on the Water and Highway Star on their "heard live" list, but to experience what these people did onstage.