Try selling Airtravel365 to businesstravel365[dot]com for a couple hundred $. I don't see it go beyond low-mid $xxx range, if that.
The others are reg fee.
Ingroom.com = $25 to $75 = Reseller Value Speculation (NOT an end user speculation)
The rest = $0 to $10 ea = Reseller Value Speculation (NOT an end user speculation)