Yeah, I'd say it does matter to some extent.
I mean, when your paying £15/$35 for a video, you don't expect to get a video with terrible quality (I.E Camera phone quality). You'd want decent quality filmed using a proper camera. 😛
So yeah. It does matter to me.
Obviously it doesn't have to be extremely good quality using cameras worth £10,000. But as long as it isn't grainy or pixelated too much, I'd consider buying it.