For PNWMAS folk-
Single day rentals:
Bounce houses are $125 w/o an operator (I drop it off, set it up, and pick it up afterwards), $175 with one
Obstacle courses are $225
Bungee Run is $275
Slides are $425 (25'-35' tall)
The larger things like Bull and Rock Wall wall are better for big gatherings and fund raisers (they do quite well with fund raisers), and they are $675.
These prices include delivery to all of Oregon and Washington, set up, tear down, and for everything except bounce houses (which you can choose if you want one or not), 1-2 operators to make sure your kids are safe.