All you pay for is the memory and printouts of only the prints you want, rather than the entire roll. A pretty good deal. I'm really impressed. Film is very much alive, friends. But let's look at the cost here.
Filters are a fraction of that.
Even if you buy a bag full, you still will have change left for film. That stuff is expensive, and developing it puts chemicals in the sewers. Along with the alligators. And the amount used by home darkrooms is miniscule. Now let's talk about cost.