We kept in touch, but last time I offered to pay for her trip to visit me in Florida, she said she would rather have the money. :/
That right there would have caused me to become at least 50% less generous.
Somebody suggested that since I am not coming, I could send more money as a present
And that would have halved it again.
On second thought, $300 it is. In złotych.
So you're sending them about two and a half times what a Pole would give if he/she actually went to the party; well that'll certainly stop them from seeing you as a cash cow in the future.