I don't do this very often, but when you can grab 89 copies of a stamp that catalogues £7.50 each, in large blocks, for a total of $40, why wouldn't you? Retail on Ebay is about $6 each, so over $500. It'll take a while to sell them, but they'll sell as it's a very popular stamp
New Zealand 1960 10/- Tasman Glacier Steel Blue