Here are some Personna 74 Tungsten blades, being sold under the "Hospital" label, at $199.95 for 100 blades. In the last 2 weeks boxes of these have gone from $23.90 to $44.95, then $84.67, then $99.95, and now the current price. Still not a bad price overall, considering that a single lot of 10 of the blades sold a few days ago for $39.67.
http://www.ebay.com/itm/Rare-Vintage-Box...SwXXxZRuZl
http://www.ebay.com/itm/Rare-Vintage-Box...SwXXxZRuZl
John