For the new Rohloff owner, two of the small bottle and syringe and tube set are a good investment as he will anyway need two syringes and two tubes if he is to keep clean and dirty oil apart. The smallest bottles are also useful for measuring out oil, and the 50ml one as a temporary container until you dispose of dirty oil.
The £24 one shot kit comes with syringe, tube and grub screw, available separately for £11. People will spend their hard earned how they choose, but opting for the 10 shot oil and components from the start reduces the expense by £15. Though it's understandable some won't want the initial cost.
You can make greater savings if you don't mind going off brand, syringes are half that price on Ebay. I haven't found an alternative supply for the pipe with threaded end, I don't know where to look? There's some difference of opinion if a new grub screw is necessary each time, I don't bother and accept a tiny smear of oil may leak past it. If you do use an alternative, Thorn's ex-workshop manager explained, in a post somewhere, which thread lock to use, it's the cost of that which stops me replacing each time.
How are people disposing of oil? I'm advised to take it to the local tip where they have a motor oil disposal tank. I put mine in a 5ltr oil can, I have 25 years worth! It's not half full, like nuclear waste, I may leave it for the next generation to deal with.