Ive no doubt its all potential at his age but there are numerous players his age and below who have gone for similar if not a lot more money and as u say its all just potential
Oyo, 14 years old - €2.5mil
Merida - 15 years old - €3.2ml
Pellegri - 16 years old - €20mil
And just for laughs and if we want to get silly and suggest every single player of his age only has potential then
Pato - 17 years old - €24mil
Junior - 18 years old - €45mil
Rodrygo - 18 years old - €45mil
Some could argue that the above, of literally hundreds of young players didnt have the stats of Miller or had/have even been capped for their country so I still maintain that £4.5mil, given his apparent stats and stature isn't an awful lot of money but the fact he plays for Motherwell and is playing in Scotland along with not having a fancy sounding name has clearly had an impact on his valuation, so as I said, lets hope we get a good sell on clause and all the 4.5mil is up front and maybe add an "o" to the end of Miller 🤑