First of all, I agree with everything Zefiro said about the significance of that figure.
For example, we had both the case where one participant said, right after the art show started, "This is my picture. When I look at it, I hear music playing, and I am in a different world" -- and bid 500 Euros, six times the starting bid. He won with that bid. And we had the case where one item went into the auction at mere 15,- over the start bid, because two bidders thought it was only worth 2-EUR-increments.
Second, the number of bids has no value at all for the execution of the art show (except for "0 bids -> back to the artist" and "10 bids -> auction"). This means that the team would need to enter more than 800 numbers which they have no use for. This would mean that there is less time for sanity checks, precautions, quality management, etc -- in short, more errors. So the overall quality of the art show handling would go down.
Third, all this information is available to the artist, when they fetch their unsold artwork, because the bid stickers should still hang on the panels. (If this is not the case, Cairyn/b_p, please correct me). Anyways, for artists or other parties who are interested in the number of bids, it should not be a problem at all to look at the bid sheets right before, and probably also during art show closing. So please ask your agent to collect any statistical data you are interested in that the art show team can not provide.