Those block prices would be for a 45hr block. Even allowing for a 20% overrun, this is going to cost substantially less than the UK unless one flies there Club Class
But the great attraction is coming out with an FAA PPL also, which will open up the way to the FAA IR the instant it is apparent (if indeed this does happen) that EASA has abandoned its attack on N-reg / FAA pilots over here.
Doing it in 3 weeks is damn good going though, IMHO.