I once stupidly paid $110 for a first spouse BRONZE graded PCGS MS67 or 8 (I forget). This was when they first came out and I couldn't find a cheap one to save my life. DOH!
Years ago I bought a 1968 Keeling Cocos set. Catalog value for the set at the time was $15. I paid $1500....And immediately turned down a profit offered by another dealer. (today I have two full sets and part of a third set)