Dear Mr. Ananth
I completely agree with you that S&H charge in some cases are abnormally high.
To prevent this abnormal S&H charge eBay has recently implement a policy on that as below(in bold). Which will take some time to come in effect.
We believe high shipping charges mars the buyer experience. This results in significant Unpaid Items and loss of sales & goodwill among sellers. High shipping charges also exposes sellers to violation of the fee circumvention policy.
In the interest of the community, eBay will initiate action against sellers who conduct their business with unreasonably high shipping charges. We consider this as a violation of our Fee Circumvention Policy.
Violations of this policy may result in a range of actions, including:
Listing cancellation
Limits on account privileges
Account suspension
Forfeit of eBay fees on cancelled listings
Loss of PowerSeller status
Know more about Excessive Shipping and Handling Charges Policy click http://click4.ebay.com/105751291.43887.0.31882.
But at the same time, it is also true that this S&H charge is not a hidden parameter. It is clearly displayed with the product price separately, from where buyer can easily calculate the Take Home Price(THP) for any product. No seller can charge a single paisa which is not visible to buyer at the time of bidding or buying. In doing so, its a policy violation. Only Octroi amount (if any) is not in item page.
Regarding item state (used or new), a buyer can file SNAD dispute to get product as described in item page or in fail 'money back' from seller.
Hope as a valued and experienced buyer you are aware everything of these.