I think we should make a sticky for money glitched maps sooner or later, since people are starting do to them on other maps too.
They're useless on maps other Foundry though, because you'll usually hit the item limit before you run out of budget. And Standoff and Rat's Nest have plenty of budget, so you just run out of stuff to place. The Foundry unlimited budget canvas adds a lot more to Foundry. I will soon be releasing a map that takes maximum advantage of it. I don't see how unlimited budget could be used on other maps though, do to the inventory and item limits those maps have.
These maps were stickied, however we cleaned up the forum they are now in the useful links thread. -Donuts