Where have all the deals gone, long time passing...
(Sorry about that)
I will echo what CompositesGuy is saying, for the most part. I'm no cheerleader for eBay, as I find some of their decisions completely maddening and incomprehensible, but they do offer an alternative.
I'm not completely averse to Buy-It-Nows -- sometimes this is where the best bargains are, as when an uninformed seller puts a below-market BIN on an item. The trick is to be the first interested buyer to see it.
A recent eBay experience: I've long been in the market for a 0-4" set of outside mikes. My preference is
Brown & Sharpe, new, but willing to look at excellent used. Such a set sells for $620.00 at Travers Tool, which usually has pretty fair prices. By searching eBay, I was able to find that exact set, new, for $325.00. This was a situation where the seller had a buy-it-now/make offer sale. I made an offer, and the seller accepted.
I'm also in agreement on the poor packaging issue. The flat-rate boxes are an open invitation to circumvent the laws of physics and common sense. While not from an eBay sale, the following offers a prime example:
http://www.practicalmachinist.com/vb/showpost.php?p=834781&postcount=16
As far as how the economy is affecting deals on eBay, I haven't noticed a specific trend. But then I'm not all that heavily involved. Someone who buys and sells on a more regular basis is more competent to answer that question.
Paula