Your question, genkboy, raises an interesting issue (to me, and which I'm struggling with) about the competing interests consumers face between "market price" and "market variety".
I'm coming around to a personal philosophy whereby I'd rather pay a few quid more by shopping at my local record store, Piccadilly Records, say, and thereby help to secure its continuing existence than buy the same thing a bit cheaper at Tesco or Amazon and thereby secure the ongoing exclusion of everyone else but them from the marketplace.
Of course, not everyone can afford to pay more, so I'm not getting all high horse-arsey about it. And you might even accuse me of taking a singularly bourgeois approach, because I doubt your average working class man could give a fuck.
And I'm also finding occasionally that the monopolist players actually stock more hard to find items than the supposedly obscurantist independent store (for example, Babybird's new album doesn't seem to be available from Piccadilly Records but is available from Amazon, and I had to order Rowland Howard's CD from Australia because no-one in the UK seemed to have any available).
But, applying the philosophy outlined, you could regard any extra you've paid to Domino, in the surprising circumstance that this were the position, as a sort of charitable donation...

...or at least an act of beneficence.
And I even vaguely see parallels in this debate laterally-thinking in defining my personal differences with the Simon Cowell approach to life and in the "save or demolish The Cliffe"/"save or demolish BBC 6Music" affairs, but it would take a grander philosopher than me to put them in between words.
Now what were you saying not so long back, bdroop?

you can have a whip round to fund my champagne and cigar limousine lifestyle if you'd like?
Er....yes please. I'd like to...

Well, maybe not quite. But I'd like to make sure your cupboard ain't bare, mother hubbard. The one where you keep the tins of smarties.