The savings are there; but in ye oldene dayz there was an additional advantage: some really interesting films were not available in anything but bulk rolls. For myself, I bulk load all my 35mm film and do not own a bulk loader. Three push pins in the darkroom door jam provide the lengths needed. I blow out the cassettes before storing them in an old coffee can with a plastic lid. Another "blow" before getting ready to reload seems to prevent any kind of dust problems. My only (very) occasional problem is a film not properly attached to the spool: a case of operator error, usually because I am in a hurry in the dark.