IO540,
I bet that EASA will ensure that you will not have valid airways kit unless you have a Galileo compatible receiver and the bronze subscription. That you will not be able to perform GPS approaches unless you have the silver subscription and that you will not be able fly into certain airports unless you have the gold subscription. Don't take me too literally, but you see my point. They will claim that only Galileo is managed and that NAVSTAR will become, to them, an unknown quantity, with no accountability. One way or another, they will make their profit.