I look at " newly listed" probably 3 times a day... in case a buy it now has come up thats worth the effort.
Most pins ive sold have been $1 listing... if its a rarity ill do buy it now or best offer... ive always hit my money with Ebay listings.. low starting price OR Buy it now.
My basice rule is..
70's.. 80's machine.. low start and have faith in the product.. it will hit its price and then some.
restored machines/ rare 50's machines.. buy it now or best offer... theres too many people that want a 50's machine but dont want to spend the $$ getting it.. theres a base price on these and theres no point in trying to deal with these machines if you want a quick sale.. its a speciality market.
DMD's normally walk out the door.. its by far the biggest market, so long as you didnt pay to much for a title, i cant see you losing