this is happening more and more with craigslist finds. in the last year i've lost a deal on a pair of local QLS 1 (for $300), a pair of RSII ($250), some RS 1.5 ($75), etc. in each case, after the seller had already agreed to sell to me and we were working out pickup. some well intentioned AK'er from a thousand miles away announces it to the world, and suddenly the seller is inundated with both local, and non-local offers (in many cases offering more than asking price + shipping). suddenly the deal goes south. well, as they say, the road to hell is paved with good intentions. the sadist thing is the person who typically ends up with the speakers is usually a flipper in the game for mercenary purposes, rather than a local collector interested in preserving a classic (yes, each of the afore-mentioned speakers turned up on ebay within a month).
bottom line is: loose lips sink ships. if you see a good local deal, by all means buy it. if you see a good deal in another part of the country, keep it under your hat until its over. then chat about it all you want. that way you don't pull the rug out from under the local guy who's done his due diligence of searching every day.
.