When i started on ebay, FVF were 3.9%.

Now with promoted listings they are as high as 21% because of the extra international fee.

that's a 550% increase in a little over 20 years.

in 2003 i could send a card in a padded mailer within the U.S. for 65 cents.

It's now between 5.50 and 6.00

that's a 900% increase.

Its called INFLATION.
20 years ago cigarettes were $1 a pack of 20 now with taxes inflation and taxes they are $40 a pack of 20 as I do not smoke they could be more.
This applies to most things also 20 years ago there was such a thing as price control no such thing now it is all any thing goes.