I can tell you prefer the numbers game. What is your sales ratio like? Would you say 2-4% annually?
It's hard to say, I probably should figure it out but it's dynamic. I've been putting 90% of the money back in to buying names. I let names drop everyday as I reevaluate them, see if they made any parking or had inquiries. I have no problem dropping something and trying something else.
Then there's the numbers and that kind of stuff that sells in waves but for whatever the market price might be, if there's even a market. This year so far i've sold about 30 on Godaddy premium, 60 on Afternic, 8 Brandbucket, 2 on sedo, one of those was $10K, around 10 through Uniregistry brokers, and maybe 5 myself through whois emails. Then a hundred or so at NameJet most of them were numbers.
I don't like saying "playing a numbers game" because that makes me think of registering a thousand versions of one keyword. I tried this a few times, I registered Geo +vape a couple years ago. I sold one and paid for the rest, but it's not normally what I do. I go through the drop lists, find names that I think have somekind of value and that someone would buy. The cool thing is I only have to be right a very small percentage of the time.
Since I started domaining about 4 year ago now, I've pretty much done the same thing. I get sidetracked and branch off into other things sometimes, but I've always come back to pounding the drop lists and buying names with sales money. If I don't have money from sales I take a break and wait till I do.