Hi Robert
yes, all of what you said, its extremely addictive.
if you do things close to where you are able to develop film / paper
you have an image in like 3 mins after you shoot it

. so its speed
when you process the paper, you have more control over it because you aren't
blind when you process it. its the image quality, not being panchromatic the grays are
different, the images have a different feel to them, and you have to judge light differently when you make them
because the paper has a different response to light that is different than film ... there is just something about it that
to me at least, is more rewarding than shooting film ... AND. if you like liquid emulsion you can coat your own or make your own
and then coat your own which gives it 1 step closer to handmade photography..
expired paper works great for paper negatives too, so it costs a little less than film in that respect. ...
one mode of paper negative photography I have fallen in love with is tangential / similar to what niciphore niepce was doing,
you put a sheet of paper in the camera and leave the shutter open on your lens, you get the light impression on the paper which can sometimes
be stabilized and fixed or it's ephemeral like a glimpse that you might or might not want to. or be able to make a 2nd generation image ( scan, Xerox rephotograph &c ) from
I don't think there is a 12 step program for shooting paper yet

John