That seems unfounded...if there was no money then PAF/PAC would've shut down the project themselves.
Also US offering F15s would be to purchase it...or best case scenario subsidized through US military aid. PAC wouldn't gain much capability from such a deal...and Pak will remain forever dependent.
american weaponry comes with strings attached .
F-15 is a potent fighter no doubt. but what if. america ask you to shut down CPEC or dam construction ?
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they prefer india over us .
what if they sell us f-15 and india f-35?
they sold us f-16 andwere offering f-21 to india .
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apache deal is a clear evidence of their hypocrisy .