acceptance
Actually a pay of accentance magazine can hold a story just as long or longer than a pay on pub mag. Sometimes forever. You can't resell a story until a pay on accentance mag has actually published it, and most of the money for a story comes from reprint rights.
Pay on accenptance is usually much the better of the two, but not always, and while you have to weed out a few bad eggs, there are some very good pay on pub magazines and anthologies out there. Most are good, honest, and will publish a piece just as fast, or faster, than a pay on acceptance magazine.
It can also be very handy to have money coming in down the road, and it's truly rare for a pay on pub mag to hold a piece of writing indefinitely.
A writer shouldn't automatically snub pay on pub magazines. They can be a very valuable asset.