Originally Posted by
henkybaby
For an F flyer?

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I only buy very cheap CW tickets and only would upgrade to F with avios (which is relatively very cheap at 20k for eg LHR-JFK... as avios are otherwise very difficult to spend at an equivalent of more than a few $ per 1,000 avios..)
I'll probably never in my life agree to pay for F, even if I had millions in the bank..