Single or multiple items in an auctions

I was curious to the thoughts of everywhere whether it would be advantageous to have multiple items of a tough issue in an auction or just 1 or 2? I am not asking for common items but items that are a little tougher (tough set or tough back). Is there more attention drawn to an auction with alot of these items? I have been going back and forth and not sure which I feel is better.

Lee

I see no advantage to having more than 1 of a scarce/rare item in the same auction.

Tome...logic says the more items...the more diluted the bidding would become. just my opinion.

The t207 Red Cross cards would be a good case in point. Good buys for everyone involved, not the best price realized for the seller.