Well taking everything into consideration. I think I am going to go ahead and give it a try...
eBay seems to be a big response by users, but I've never actually bought any Amiga items from eBay because they're overpriced. Part of this because eBay has a strong USA userbase and Amiga is much more rare in the USA. So, people bid on it taking that in consideration. Amibench prices where always lower then eBay.
And just incase some people don't realize the "ways of eBay", many people wait till the last hour or even the last minute to bid, so if you think prices are low, try looking at "Completed items".
I know it will be tough getting people to use it, but it's worth a try, because there is infact a void to fill.
Thanks,
Neofree