The price of having coins slabbed fall into different categories.
One is to have experts assign a grade, sometimes for resale.
Sometimes just so a collector knows what he has.
Another is for authentication.
There is a group that will send modern coins in, to try and
get very high grades. For example MS 70 or PF 70.
Many times the price paid for having coins graded is just
part of the hobby.
A lot of times common modern coins can be purchased for much
less than the price of having them graded.
For example - Last year I bought these slabbed coins for
$2.00 each.
