Not sure what part of Az you are in but a quick perusal of craigs list in Phoenix area brought up
these. You might negotiate the price down some. Depends on the condition. Or
these. And
Vandersteens are always good - price is a bit high but those are nice speakers. Don't pay asking price.
There are lots of good used deals around - you just need to know what to look for - and what to avoid.
If you find something interesting post back and ask about it.
Update: Here's a
great deal - the Beta 50s alone are nearly worth that! Buy the lot and sell off what you don't want/need. Of course you should always talk the price down. The Beta 50s are the 'poor man's Revels'. Revel of course being the top of the line speakers for Harman International. But Revel uses the same drivers as the Infinity Betas. The tweeter in the Beta line are about as good as I've ever heard - I've owned Infinity speakers for nearly 10 years now because of these tweeters. I have Infinity Cascades now. It uses the same CMMD as the Revels - Betas - Interludes - Preludes etc. A very long line of great sound!
The Primus line does not use the CMMD drivers unfortunately.