I voted for the M/Scanner set up. I have it already so that simplified it too.
My negative files go back 40+ years and it only takes me minutes to pull out a negative, scan it and, if needed, do some spotting and contrast correction.
Digital is still very much an unknown when it comes to storage and longevity. Yes, you can "re-format" every 3-5 years - but how many of us would truly do that. Hard drives,CD's and DVD's have a limited lifespan - bl/w film properly processed will last a long, long time without any reformat procedure.
I also find that I am more selective when it comes to edits and shooting with film. With digital one tends to "scatter shoot" in the hope that something will be good!
There is also, at least as far as I am concerned, the added technology and its inherent problems. A M2 acts up and in many cases you can pole at various parts with a screwdriver and get it going again. A digital acts up and you are now carrying a inert lump of metal (sometimes) and plastic with no idea how to revive it!