I do use digital for convenience and utilitarian reasons sometimes, but it doesn't hold excitement for me or especially captivate my interest the way that film does.
I use film because I like the processes involved in using film. I like the care and feeding of a wonderfully made mechanical marvel or a simple wooden camera. I enjoy going into my darkroom to develop film and make prints. The workflow is relaxing and fun. Seeing a gorgeous transparency emerge from my processor or an image form before my eyes in the developer tray seems magic, even though I know it's not.
I like the pace of shooting film. I think 36 frames on a roll of 135 is a lot, actually. I think a couple of film holders loaded with 8x10 film is a lot too. Twelve square images on a roll of 120 never fails to delight me. I always grab a spare roll or two to take along when I head out with one of my cameras, but even the tough decisions about what to spend my last few frames on are an interesting part of the game.
I like the look of wet prints from film. I like to select the film for the conditions I'll be shooting in, and for the look that the particular emulsion renders. I like to vary my processing or my printing to get the effect I want. I like trying to do things and to perfect processes that most people aren't doing anymore.
I think more than anything I like having that tangible piece of developed film at the end of the day. I can file it in a drawer, look at it on a light table, project it on a screen, or make a print from it with my enlarger. There is simply no satisfying way that I know of to handle a digital image.
One thing I really do not care about at all is the argument over which is "better" or "superior", film or digital images. That has no bearing on my preference for film. Photography is a hobby for me. I do not make my living from it, so things like productivity, fast turnaround, and cost really don't factor in to the equation. I shoot film because everything about it fascinates me, and I can get photographs I like from it.