Because it's so easy to make slick mockups a lot of developers have forgotten that lo fi prototypes are a Good Idea, but obviously you're also selling against f

Because it's so easy to make slick mockups a lot of developers have forgotten that lo fi prototypes are a Good Idea, but obviously you're also selling against folks who will show clickable prototypes that look finished, so it's a matter of building a relationship where you can avoid this kind of silliness.