"You buy the CD, don't make a copy because you don't like it, and resell it. The artist still gets royalties on all 1,000, because you aren't one of the 1,000 who would pay for the album. No harm"Huh? The first clause of your first sentence stipulates "You buy the CD", but you wind up saying "You aren't one...who would pay for the album." You lost me dude.
Here's the one and only difference that matters today that didn't come into play in yesteryear: People give music away by the hundreds and thousands to strangers they never met. I am ethically opposed to file sharing like that. For a valid comparison with 20 years ago, you'd have to imagine a scenario where someone buys a record, duplicates thousands of copies on cassette, and then sets up tables at downtown intersections throughout the country with signs saying "free, take one or as many as you like". For obvious reasons (not ethical ones) that didn't happen then, but the equivalent can and does happen now.