Todd there's more too it than that. Ebay has gotten crazy with their fees also. Example just last week i sold a b/blk injection and a b/blk injection manifold only. The injection for $800.00 th emainifold for $550.00. Total $1350.00 plus $105.00 shipping. Paypal took $43.00, ebay sent me a bill for $99.50 ($50 and $49.50) That's almost 10% of the sale. By contrast, i also had a very nice restored 1970 Nova SS clone listed with a reserve of $18,000.00 and a very nice restored 1971 C10 listed with a reserve of $16,500.00, If either one had sold the fee would would have been $125.00 each, go figure it just don't make $'s and sense to me.
JMO
Zip.