I don’t think you got taken. Let’s look at some raw numbers.
$68 for the ball. Shop is going to have a small markup, since he is in business to make money, so let’s call it $78.
$78 plus a standard drilling fee, which around here us $50, so we’re up to $128.
Going to assume you use inserts since 95% of us do. $10 for fingers and $15 for thumb add another $25, so now we’re up around $153.
Add in sales tax, which here is 8.75%, and you get $166.39
After all of this, the shop made about $50-$60, and had to order the ball, verify the specs, deal with the distributor on the back order issue, keep track of the transaction for tax purposes, and drill it satisfactorily to your specifications.
If he sells one everyday, all month long, he may be able to pay his rent.