To Olivier, I have no experience in this sort of matter (wiring money to a recipient who fails to respond), but perhaps your bank would advise you on any potential for recovery of funds? I believe that once you wire funds, you've done the same thing as handing cash to someone. At least, with a check, you can pay a fee to stop payment on it.
My primary advise to you is to to use a mode of payment that provides some protection to you. The only mode I use, when buying things on AstroMart and CloudyNights, is Paypal. Paypal CLAIMS that if a buyer purchases an item using the "Goods" mode of payment, that Paypal offers a "Buyer Protection Plan". That plan claims to offer a variety of protections under which the buyer is "protected" if something goes wrong.
As a buyer who has had an incident for which protection was necessary, and requested - a scope I bought was damaged badly by UPS during shipment - I am here to say that Paypal's protection was NOT going to be a complete recovery of my funds laid out for the item. So, don't be fooled by the promise of "protection", because all Paypal did when I requested their intervention was to go back to the seller and ask how much of the funds he was willing to return to me due to UPS's malfeasance. If the seller said "50%" and I wasn't happy with that, I believe that the end result of Paypal's "Protection" program might have been mediation. Paypal doesn't indicate, anywhere that I've seen, what "Protection" means. They tend to use loose terms like "you're covered"... what does that actually MEAN, legally? Probably nothing.
To Greg, I agree with you! I thought about the red flags, as you mentioned. My feeling was that it's a strange set of circumstances, no prior ads, but the new account is the cause of that. A high quality scope, as the first sale? Probably a scam, but... maybe not. It doesn't hurt to throw out an offer, especially if the seller shows acceptance of Paypal. One of the supposed protections of Paypal's "Buyer Protection Plan" claims that the buyer is "covered" if he/she doesn't get what was paid for; so, if I send $3k (plus the fee) for the "excellent condition Tak FSQ106 EDX III" and don't get it, I assume that Paypal will give me my $3,000 back.
I've been involved in 3 of these scams. In all 3 cases, once I stated my intent to pay via Paypal, the process came to a halt. In one case, the scammer didn't reply, at all. In the second case, he/she said something was wrong with their Paypal account, and could I send a check or wore the funds. I refused, and told them to contact me when their Paypal was fixed. They never did. This recent scam by Hay Leverne, he/she e-mailed me 4 days after the ad was posted, and said the original buyer failed to follow through, and so I now had the opportunity to buy. They then ignored my messages for 4 days, after I responded to the note saying I could have it if I wanted it. My response included the request for their Paypal address...
I assumed that a scammer wouldn't want to deal through Paypal. Finally after 5 days, I got a note saying they'd been out of town on a family trip, but were now ready to complete the sale. They didn't respond to my request for a Paypal address, though, so I gave up.
I remember being hopeful on the first scam attempt, being semi-hopeful during the second, and with this FSQ thinking that I really don't need it, but if it turns out to be legit that it would be a nice buy. I have made a few purchases, in the past 18 months, in which the price was really absurdly low - a new or almost new item at 50-60% of retail - to the point that you'd think no sensible seller who'd checked recent sales would go ahead and sell that cheaply. Still, there it is. Do you skip it, just because it's got a cheap price? Maybe the red flags should be a large portion of one's decision.
I've got a bad taste in my mouth from the Paypal experience on the shipping damage, but in the end, the UPS insurance that the seller purchased did end up covering the situation. Had the insurance not been in place, though, I would dispute Paypal's assertion that the buyer was "covered"; because, I would have been half-naked in the eyes of the law after being dressed with Paypal's "coverage".
Still, some protection is better than none. Be careful how you spend your money.
But, I'd much prefer to pay Paypal 3% of the transaction amount, in order to have a chance of recovering a significant percentage of a purchase amount, than to launch anything to someone by wire for which there's no chance of recovery.