I don't think eBay or Buyers really have a good judgement on how much is too much for S&H, until you've sold something yourself. I mean its Shipping and Handling -- Shipping for postage, Handling for the cost of the seller to get your item ready for shipping i.e it might be material cost (envelopes, gas, time, printing supplies, and the cost of them to have their internet connection). So how are we to judge the distant btwn the post office from their home, the cost of gas in their part of town and etc.
I think as long as at the end, your happy with your total payment which is cost of item plus S&H is within your budget you should still walk away thinking you got a good deal instead of picking over how much this seller supposedly jipped you on S&H...for the most part your probably just considering the Postage portion.
It's like me ordering say lingerie from victoria secret, i mean 2 panties cost rougly around $25 (this is just an example ) and VS decides to charge $8.95 for S&H. We all know shipping panties at max would only cost you $1. so how are buyers suppose to complain about that?? if you like the item, you'll pay for it b/c at the end its worth it for you and its not breaking your budget. so the same should go to sellers on ebay, they're their own store front with their own overhead that needs to be covered.
I use to think the same way about supposed 'excessive' S&H. Till last month when I finally decided to utilize ebay during their promtional sale that I decided to sell on ebay to clean out my closet. Can i just tell you. It was a pain in the A and not to mention the time it consumed to ship these items. I charged $30 for S&H on item costing around $300. I included besides postage, insurance, restricted delivery, registered a whole bunch of stuff -- it maybe excessive in adding all those stuff but reading about all the scams I didn't want to risk it. but now with this 'excessive' monitoring I'm thinking my items would probably be flagged...
the funny part is, the max. I got off 'overcharging' was $1 which probably contributed to the 'handling' portion...and honestly, that would'nt even cover gas for the distant I have to travel to drop it off at the post office.
so I am not sure about this 'big brother' partrolling on 'excessive' shipping bc in way its really a subjective matter. plus this leads to another reason for sellers to leave ebay and leaving buyers less opportunity to find 'treasures' on ebay.