It's not about legality, it's about convenience, while living in the UK, I honestly stopped downloading illegal stuff and was surviving on spotify+netflix+lovefilm+bbc iPlayer.

Now I'm in Latvia for a while and none of those (except for spotify) work without a proxy. So TPB is my friend again.

I have no problem with paying, just make it convenient and reasonably priced (iTunes I think is not, maybe I'm not rich enough).