Interesting. I think it's a bit of a cash grab...if demand for these services is up, you'd think economies of scale would lead to lower, not higher fees.
Plus, I'm not convinced by the notion that expertization has been somehow subsidized by other activities: it seems logical to assume the reverse--expertization revenues would help the foundation put on events and sponsor low-revenue activities and programs.
Litho...the complexity of things like credit card processing (for example) is also immense, yet now costs less than 3% with Paypal and Square.
Lastly, buyers and sellers at reputable auction firms can usually be quite confident that experts at Eastern or Maresch could spot anomalies. I fail to see why anyone would expertise a stamp valued under $1,000...and if we assume that growth in expertization is due to increased transaction volume on sites like
ebay...very few stamps sell for large amounts on such sites.
$85 simply seems excessive except for stamps worth thousands of dollars of dubious or unknown origin. Especially if your intent is to turn around and sell with an auction house. Just my 2c.