I just did Buy It Now on the one I really wanted. If bidding gets crazy at the end, then it could well go over the price I payed with Buy It Now, especially since the Buy It Now price is only 4 dollars more. There were several people "watching" the item, meaning they would have been bidding closer to the end time.
I got First Avenue and since they are sending 5 rhizomes (!!!) my $19.50 is rather a steal. Guess I'll have this type of clump in no time!