depends on a lot,
mostly the current owners not lowering their prices to do a quick sale and leaving the f/s thread prices IN THE AD AFTER it has sold.
this way someone looking to buy will know ahead of time not and even try the low balls (though they still will). call it price fixing in a weird audio way, but if one owner sells his at $275 and leaves the price in the ad then the next owner can follow and etc..etc..
Ray having issues with suppliers of parts, for example the last hornet issue brought Hornet up to a $300 or even higher mark. people who got in on the $300 entry price could walk out even Steven.. in other words knowing when to sell is very important like with anything else. again one must keep the prices in the ad's to keep the prices up and other owners succeeding in a good sale..
How much demand and how many are available at one time or how quick one can buy new compared to buying new, something like above only a little more into how long it takes Ray to ship a new one or how long of a wait a new customer must face. (that was a long sentence..probably like most in my grammar not correct.)
Ray is pretty quick so don't bet your lucky stars on him having a long wait time, if you had a Xin or some other product that is known for having longer wait times then you would easily have more interested buyers..which means you have a better chance at resale close to what you want.
If Ray comes out with another version (like the Hornet to Hornet M) then that may help or hurt..but again I would not bet on your lucky stars for it at all..really
If you want more of an investment of the amp then the smartest is always buy used..anything works out better in the after sale with price this way..well anything audio.
I think looking for resale value before you buy any audio product is almost an oxymoron..should not share the same sentence..even if its a long sentence like some of mine here...hehe