Copyright conundrum

Good debate over at Surroundings regarding Wendy Cope's Guardian piece on poetry copyright, which I only got round to reading last weekend.
I think I'm firmly on the side of those who think that reproducing poems on the internet is likely, in the long run, to mean more sales for the poet concerned, although obviously it's entirely up to the individual poet what line they want to take regarding their own work. For my own part, I think nearly all the poetry I buy now (and the already groaning new bookcase I shifted into my back room two weeks ago tells me I buy a lot) is purchased after I've sampled the writer's work online. It doesn't happen nearly so much with the non-poetry books I buy, purely because they're usually much easier to find in bookshops, where you can spend hours flicking through them while you decide (Borders even provide sofas and coffee to help, for heaven's sake). So, is internet browsing of work really so different to hiding yourself in quiet corner of Waterstone's while you read all the best bits?