About 7 years ago I went around to all the comic stores and bought all the 181'S I could find, ended up with about 9 pretty good copies(2 ended up CGC 9.2)the others I sold several years ago. I feel this is going to be a book that continues to see growth. I bought a collection about 8 months ago for $280.00 from this antique dealer and there was about 300 silver age including hulk 175-186 and had the 181 CGC'D at 8.0, not really high grade but pretty good for the cost. Some people may think 19,000 is high for the 181(which it is) but having a "key issue" like that and there is only one that has graded higher, I'd love to have it!