Been selling domains since 2002 or 2003 but 99% of my inventory are mainstream .coms. I sell most domains in the 1-10k range with just a couple below that range and a few well above that range, highest one ever was well over 100k.
I redirect all of my owned/brokered domains to my own sales pages and list at Sedo, Afternic, DomainNameSales for additional exposure. I'm a very passive patient seller though so I only sell a handful a year but the ROI is so high that that's basically all I have to sell to generate a nice profit.
Considering most of my inventory was acquired expired at registration fee most would probably flip away $8 into $25, $50, $100 etc... but I figure since the cost to keep a .com is only $8 year holding something for 1-10 years still only puts it in the $8-$80 range and I prefer turning $8-$80 into 1-10k+. Flippers sell more at lower margins but I've never done that business model as time goes on hard to replace the gems ya sell off cheap due to increased competition so I prefer to do less sales a year at higher margins which is less work as well. I usually always have at least 400-500 owned/brokered aged .com domains in inventory.
Key to domain sales is...
#1 Quality domains (a natural flow of offers tends to come your way automatically)
#2 Distribution Channels (Sedo, Afternic, DomainNameSales, If ya passed on Afternic in the past makes sense now as GoDaddy bought them and nobody is touching GoDaddy's end user reach due to TV advertising that nobody else is doing)
#3 Patience (a domain isn't worth what someone will give ya for it, a domain is worth what the right end user buyer will give ya for it)
Bad domains will still hear crickets. Quality over Quantity.
