I tend to purchase certfied coins more often than not, given the counterfeiting in the US marketplace. I've noticed when I shop for EU coinage on the UK ebay, certification hasn't grabbed the attention of buyers like it has across the pond. With silver mounting a comeback (currently $77/ounce in the US), we are likely to see inflation on silver coins. I've been trying to anticipate this and recently made a few purchase on early American coins which have a price premium for years 1795-1807 especially.
There are definitely savings on coins with "details" grade. Usually this is because of holed (or plugged if repaired), graffiti, cleaned, and or “tooled” coins. PCGS is less like to put a grade with the details so often cryptic in my mind. They started the “genuine” and “gem” grades. Each of those label terms can sometimes baffle the novice collector, but if all you are after is a document of authenticity it works. Most of the time these terms are a result of bulk submissions (vendor sending in 100s of the same coin) and market conditions.
PCGS can also be the most verbose for starting the obvious on the label (using terms like “tooled” and “harshly cleaned" ). NGC usually will have one descriptor in addition to the details grade. ANACS certified coins is the most generou ….. often the label simply says “details” but will frequently include a grade eg. “ XF details.”
Do you sometimes by certified coins with details grade? What influences your purchase decision?