I've been thinking about this topic for a couple of days, and I honestly cannot think of a game I've wanted, that has eluded me. Maybe I pay too much  , or I am just "lucky" ?

The best I can think of is an Embryon AND a Solar Fire (both out of the same collection) that I JUST missed due to bad timing.  The fact I missed BOTH games, from the same place at the same time was ironic. Both were collector's quality.