I've seen high S&H. I understand that gripe.
But, the S&H should be listed on the listing. If it is not, private message before bidding.
Don't forget, S&H is usually where listers compensate themselves for eBay listing fees and end of auction fees.
(But, you are right, I've seen S&H for DVDs and such as high as $25)
Always evaluate the TOTAL cost when bidding, and beware anyone who doesn't post a shipping price on the item. That's also used to "adjust" the winning bid, if the winning bid comes in too low.