Film cameras are fun for me. A hobby. Digital cameras I use for work: Pictures for columns or articles, stuff for the blog, and so forth. If I can share lenses between hobby film cameras and digital work cameras, that's a big savings in money, space, and hassle.
I'm seriously thinking about trading in my three Canon DSLR bodies and my EF-S lenses on a Nikon D300 or even a D700 and just keeping the EF lenses for the EOS film bodies.