Other programs I use remain somewhat consistant on PPC, and therefore revenue balances out over the year.
Its all very well getting $1 a click for a short period of time and then getting $0.10 the rest of the time, SEDO have mastered the apeasing domainers, and hats off to them for pulling it off, its very much rollercoaster revenue.
Each parking page has a varying PPC, and if the advertiser at the top of the page is not targeted enough for the visitor they will go down the page until it is, the further down they go the less PPC.
Some programs demonstrate what position the click was made at, which to me is a fantastic tool as it offers more transparency and explains why some clicks earn $10 and others earn $0.10 while also showing the GeoLocation of the visitor who made that click which also determines the PPC.
I always assumed that people would click the top link, as they do in search engines but I have been proven wrong.
Not to defend SEDO, but its all about the averages. If the overall average PPC decreases by more than 25% then its time to change the keywords.
Sedo have a lot of good stat tools, but they really can not compare to others who have more transparency.
I have more than 3000 domains on sedo, the same listed on afternic. I use neither for parking and yet I get more offers on AfterNIC than on SEDO. I also get more offers from the Trafficz contact form and WhoIS than from SEDO. Whats more I get commission from AfterNIC every time someone registers to make an offer; its a win win situation.
SEDO dont appear to care about the individual, and if that works for them; good luck to them. I prefer programs who offer explanations and back it up with proof to address any of my concerns.