At the risk of blowing up the ebay prices, there is a seller (ecpar411) that has 10 auctions for soon to be delivered S9's
[snip]
from my research this is a hash board swap situation (just a guess) but alot of ebay people by new swap out the hash boards on there old ones then resell the new "shell" with old hash boards. since they dont accept returns ebay is genealy in my opinion a bad place to buy. after all why would someone buy a SKID of s9's jst to turn around and sell them at half price ?
Speaking of eBay, the sold Avalon6 prices are approaching an average of $300 each!
Due to the age of those miners, recent difficulty increases, new miners coming out, and eBay risks, is it worth it to consider these anymore, or should I just wait until I have enough for a 741?
All depends on your power outlay. If you can afford a bunch of them, vs 741's or s9's (821)...that's where you have to decide how much buying those are vs buying something newer.