[Baseball Bob]

I think another factor in the discussion here is the difficulty of actually obtaining the cards, especially NM or better copies. It has been very frustrating to me, as I am sure it is to many collectors like me who enjoy instant gratification, to wait for many weeks or even months for a key card to come up for sale or auction. It has taken me four years to assemble a complete set in nice condition. Other popular sets all you need is $$$ and you can collect it all in fairly short order. The three very tough short prints (Hadley, Haines and Seibold) deter many from getting a complete set.