I think it's the gold rush, Stereo.
There was a listing on last night for six Welsummer cross RIR eggs at £10+!

In the end I couldn't figure out which listings were for quality and which were rubbish. so I just stuck that day's farmyard mix eggs under my broody instead and kept my cash!
So, last night I would have paid good money for GOOD hatching eggs, but I couldn't find you

amongst all the dross. There are a few things that I think would help with that though:
1) Have a username like "Stereo Hatching Eggs" or similar. This marks you out as serious.
2) Have excellent photos of your stock, preferrably in breeding pens. Make clear the males are unrelated and that the photos are of the actual birds, not just ripped off from google!
3) Have a great description, including whether they're utility stock or show stock. Half the time people try to differentiate themselves by saying 'show quality', but unless you include photos of your rosettes it means nothing. Also that's going to make me less likely to buy - I want egg layers!
4) Have different types of eggs for sale at the same time ('sellers other listings') and combine postage on multiple / mixed orders.
5) Include feedback / comments from happy customers in your listing.
6) Ignore Ebay and advertise on TAS instead!
HTH!