I've been shooting slide film in my 35mm camera for several years now. I have no desire to go digital because film makes me happier than anything else. I am a sharpness freak so I use the best equipment I can afford (prime lenses etc). But I know that I would enjoy medium format. The only thing is that I worry that it will become impossible to find 120 film soon, or find a place to get it developed. I travel all over the world and love to shoot travel photos. Is it too late to jump into MF to shoot film? I've been considering a Hasselblad 501CM and/or a Pentax 645Nii system for some time now. I'm just worried about taking the plunge. What are your thoughts?