I sorta feel the same way about it that you do, I really wouldn't take interviews that far unless I was at least somewhat inclined in taking the offer. However

I sorta feel the same way about it that you do, I really wouldn't take interviews that far unless I was at least somewhat inclined in taking the offer. However, employers don't particularly care about their candidates either. Generally you're expected to skip a day of getting paid, at crappy notice, to come talk to some people who've laregly already made their minds up about you. You might be the special case that doesn't treat candidates like shit, but after a while of getting stiffed, most people learn to play the game. I can't really blame people for trying to get what they're worth. I suspect though, if they're willing to take the chance going back to their employers with a competing offer, they're at least willing to take that offer should their current employer react poorly or fail to match it.