I'm a big stock footage fan. Film is collaboration, so I see it as a collaboration with the talented guys/gals who went out and shot the stock stuff. It's the low/no-budget equivalent of having a second unit. Sure, you need to grade those shots to make it look like the rest of your film - and you don't want to use the same clips as everyone else. But there is so much fantastic, affordable stock footage out there that I really think indie filmmakers are missing a trick if they refuse to use it out of principle.