The Herbalaire and Extreme Q are both sub-200 dollar bag blowers, both also have the ability to vapebong or whip, and the herbalaire has a lackluster direct-draw ability as well. Both are well loved with some caveats, check their threads. The herbalaire excels (in its way) at efficiency, while the Extreme is loved because of its electronic readout, remote, and almost superfluous amount of glass, which is kind of cool.
The Oracle seems like it might be the cadillac of bag blowers, using IF radiation as its primary heat source. I would definitely get it ahead of a Volcano if I were looking to spend that many bills, I think it's even less.
Don't throw your Zephyr out, open it up and take a look, post some pics for us even. And this'll probably get resorted under Ask FC, just so you know.