Hey,
I've been working with b&w film rolls for some years now, and as you can read above, you shoot very differently if you know your pics are going to be b&w.. My colour pics (digital most of the time) aren't near half as good as the b&w ones.. (because it requires a different state of mind which is difficult to achieve if you keep thinking in b&w

)..
And photography is never cheap

so if you want to try it, have a go!