Honestly, for several of us who sell plants in other places, the club auction isn't the best way for us (I know me) to make money. I wouldn't be overly concerned with that, Damian. Just a nice, but honest, way to say there are better venues to treat the plants as an income stream.
On the other hand, bidding up items in the auction does help to fund the club, as wel as reward the members who may be growing something well, or making investments into a new species, etc. The club does take a cut of the proceeds; this helps to offset the costs of many things. Like of the food at the meetings, the nano contest subsidization, costs of guest bringing in guest speakers/scapers, sponsoring things like Aquafest.
In the end, I would imagine that only some of the rarer items are going to show as single (unduplicated by another member) bags.
We had actually also considered just lumping all the bags as a lot somehow, as many items (including several rather rare plant species) are liable to be brought by multiple GWAPA members, making duplicates regardless. This seemed like the best and simplest middle ground we could do.
i didn't mean to but wanted to add my little two cents...anyhow, i hope the decition will satisfy the need to do the auctions faster 
