1. eBay itself encourages sellers to include shipping charges in the
listing; and you DO get more bids that way. But most sellers don't have
the items boxed and weighed before listing, so they leave themselves
some room in case it's more than expected.
2. Greed. Padding the shipping helps "make up" for increased fees, "too
low" selling prices, etc.
3. Fee avoidance. eBay doesn't collect fees on shipping. I've seen $5,
5 oz. electronic parts with shipping and handling fees over $100. (What
the part is actually worth) "Excessive" fees are against eBay rules,
but they're rarely caught.
Not raw parts or partial bags of parts (like the Goliath bags which seem to
*some* of the Goliath parts that normally go into those starter sets).
Looks like a surplus sale from the factory or a local place that did
Or the stuff "fell off a truck".
-Fred Shecter NAR 20117