Always such a troublesome conversation.
I've downloaded games in the past. Er, downloaded through unofficial channels, that is. Not games that are supposed to be acquired that way. Well, I mean, I've gotten some games that were supposed to be downloaded, too, but - wait, I'm getting off message. Point being, I'm no innocent. That said, I can't think of one I've snagged that I wasn't assessing for a buy prior to purchase.
I know that doesn't make it any better than intending to simply keep the illegitimate copy, but I can't help thinking of it via the bookstore analogy: you're in the market for a good novel so you go to the bookstore. You walk down the aisle of your favorite genre. Let's just say it's the comics aisle. There are several series here you've read sections of in the past, series you can rely on to satisfy. If you see a new volume out in these series there's no need to hesitate in picking it up to add to your collection. Oh look, the next issue of Fables is out! Awesome. *snags volume thirteen* Great, that'll be tasty later. (Edit: to clarify, I'm referring to purchasing this book, not snagging it as in theft.)
A couple of shelves below that there's a series you've never touched - let's say Queen & Country. That's a very different book: still a comic, sure, but it's black & white compared to the full color of Fables; Q&C is much more down to earth compared to the high fantasy mixed with the real world present in the other series; Q&C comes in pretty hefty collections so it's a bit of an investment (granted it's not what I'd call expensive but hey, books - it's the average price, as most games tend to fall in the same price range). Perhaps there are folks who'd like the cover enough to buy into a new book series based on the cover alone or who could be convinced by the info on the back of the book blurb. Personally, I'm not the type. I prefer to take the book down and page through it first as, even if the content described on the back is fascinating, any number of things could turn me off about the book itself:
-weak dialog
-weak characterization
-unappealing art style (not "bad" art, just art that doesn't appeal; From Hell falls into this category, for instance)
-illegible writing (see From Hell again - all the narration in that is in this headache-inducing scribbled cursive I couldn't stand for more than a few pages of squinting)
-failure to match marketing (blurb says murder mystery, story turns out to be unwanted harem comedy)
And so on. So I take the book off the shelf and spend a few minutes paging through it to see if I actually enjoy reading it. If not, I put it back on the shelf mostly unread. If so, I buy the book. In the same vein, I tended (I guess I should say "tend," but I can't think of the last time I ripped something - Steam is so good to me) to download things when I couldn't find gameplay demos to try them out prior to purchase. It's the test-drive model. It seems rather foolish to just dive into a purchase without knowing anything more about it than "it has really cool commercials!" Considering I can be fairly picky in my gaming tastes I find it very helpful to have some hands-on time first. Ends don't justify the means and all that, I know. Just saying that, in my case, if all games had playable demos I don't think I'd have ever ripped anything - it's such a bother, really, all that p2p stuff. Not justification, just one person's explanation.
This is compared to, returning the book analogy, the guys who just sit in the manga aisle and read through an entire series there in the store without buying anything. I...really don't know what to make of that.