eBay is masking the offer prices on item pages, but they show that an offer was accepted on the search page with a sold items filter.
http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_nkw=371871764539&LH_Complete=1&LH_Sold=1&rt=nc You have to use a combination of the two calls to see list and sold prices. It would certainly be more useful if both calls returned soldfor and listprice. Masking offer prices actually provides some price support. If offer prices are too prominently displayed it creates downward price pressure. Offer can be accepted for a lot of reasons (condition, need for cash, etc) that shouldn't drive down prices. But sellers focused on price as the only competition factor tend to force prices down and more so if they see best offers that are lower.
Good to know, thanks. I figured something like that was going on but couldn't quite figure it out. I think at this stage having the findCompletedItems show the correct sale price is actually perfectly sufficient for my needs. I'll keep an eye on it though.