I can see the cost benefit of an oiler on the old pre-o-ring chains but not with o-ring chains used today. Other than rust control; and I never had a problem with rust (in Minnesota we lubed so much it could never happen and the old chains never lasted long enough to rust any way and in AZ it's so darn dry most of the time that rust is not a problem even during the monsoon season; what with little lube I use keeping it at bay).
Since I got back into motorcycles I've noticed a lot of things have changed and I've only put "high" miles on two bikes and they have shafts so my experience with the new chains is very limited and pretty much from conversations with riding buddies that go through them. Talking with them and reading on the forums, cleaning seems to be more critical than lubing. Even back in the day there was some discussion on chain lube attracting dirt and causing more wear than no lube.
So I'm keen on hearing your motivation for the scottoiler. I figure I'm not too old to learn a thing or two.
Remembering it is another problem.