Notes (continued):

The two current trades on the market for the unusual weren't helpful, so I had to do a bunch of back research. The only reason I keep a higher end of 29 keys is 1) because there was a buyout 30 keys that was not met by adding sweets to the bud offer. 2) It seemed like the person offering a bud with sweets was willing to negotiate paying more.

If you find something to disprove this suggestion, then please let me know and I will see whether it is correctly worth closing this suggestion.