Charles Bukowski - American author

Has anyone here ever purchased anything via auction at pbagalleries? There is a bukowski auction (#455) coming up on 6/2/11. The website does not have any of the lots listed yet, however. I'm wondering if this is worth exploring further.

I'd be curious to hear about any pros and cons. I understand there is a 20% fee on the sale price but looking at previous auctions, the sale prices appear cheaper than abebooks and such.

http://pbagalleries.com/live/calendar.php

Thanks in advance.