Exactly. I still use my Sveas and R8 and keep a metal ball point pen barrel as a "primer". Same idea as the eyedropper...I just stick my thumb over the end and pull out enough gas to prime. When it's really cold, the "hold the stove with the valve open in your warm hands to prime" works "sometimes".

The first time I primed my Optimus Nova....which stores with the valve slightly open (design flaw) primed so vigorously it set the surrounding grass on fire! I've seen people do the same thing with Whisperlites.