Tried a three-tier price on my starter package and only sold the middle

I've been stuck on what to charge for the 6-week reset, so I stopped guessing and put three prices in front of new enquiries for a month: $290, $420, $610, same scope. Nine people, seven picked $420. Nobody touched the top one and the two who took $290 both asked for a discount anyway. Not the clean answer I wanted, but at least I know where the floor sits.