Are there bulk deals for PSA/DNA?

While researching final sales for various autographed cards, I noticed shoeless-joejackson had just auctioned off a ton of psa/dna graded cards for well less than the standard $20 fee. This wasn't the first time I noticed that, either. Is there a way to get cards authenticated for less than that, or are sellers just taking a bath on this stuff? I've never submitted to psa/dna, but I didn't notice anything on the form that mentioned quantity discounts.
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I just PM'd the board mod CarolJ and asked to get the $15 rate and she got it arranged. I've heard that some people have gotten a $12 per card rate but I didn't ask for that, I asked for $15 and they agreed. Just PM her with what you want to pay and the worst she can do is say "No."
Good luck, I hope you get a good deal.
Mike
On the other hand, looks like Shoeless Joe might be taking a hit on a few too.
He must not be hurting from it though or he would probably be listing them as Fixed Priced auctions to protect him from losses.
He also accepts "reasonable" offers .... LINK
Picking up an authentic Mike Schmidt PSA/DNA card for $20 is a nice buy IMO. LINK
PoppaJ
Collecting:
Brett Favre Master Set
Favre Ticket Stubs
Favre TD Reciever Autos
Football HOF Player/etc. Auto Set
Football HOF Rc's