Although you may be in the grip of RAS (Rickenbacker Acquisition Syndrome) I am going to suggest that patience may be your friend. Although the prices of most models of most guitars are at relatively low levels historically (due to the economy), the prices of 325s on the market at the moment seem to be quite a bit higher than "normal".
Ontario_RIC_fan suggested a starting price range of $1,500 which I think is right for a 325 in good condition. I paid a bit more than that for my 325v63 in June 2008 before the economy went into its power dive. (The "v" reissues are "pretty close to what they were like back then" so they don't command the price premium that the "REALLY-close-and-maybe-even-identical-to-back-then" "c" reissues do.)
However, I scanned ebay and craigslist (another tool to search multiple craigslist locations is
http://www.jaxed.com - click on "Mash" and select "Instruments") and asking prices are in the $2,000 to $2,500 range, significantly higher than $1,500. Note that the current asking prices may well be justified based on the specific features of each instrument (John Lennon signature limited edition, c58 or c64 reissues, etc.) - it might just be that there are no run-of-the-mill 325s for sale right now.
From what I have seen, models that are less common appear to come to market in waves - none, or very few, for a while, then quite a few. I am sure that statisticians could tell us why (something about how randomness does not lead to uniformity). For example, after months of not seeing a Capri on ebay, now there are two!
So, if you can resist pulling the trigger for a while your willpower will probably be rewarded, either in price or, perhaps more important, finish quality. (On the other hand, you will have lost time when you could have been playing a Rickenbacker!)
Well, maybe. Guess that's why I became an EE and do what I do with my business. Love the details.