[thejeff]

It can be good for throwing up early globals. Often an early Mother Oak or the like will be unopposed for awhile. It may also be worth using it for some of the other gem gens. If you shorten the payback time enough who cares if it goes down afterwards.

It may also be worth running a bluff. Throw a discount global up and they either leave it alone, or waste a ton of gems bringing it down.

All this only works if there are slots empty. Once they're all full, the discount site won't help much for globals.