That's the same in EU - amazon.co.uk shows 1-3 months delivery for R9 280X and in Poland the arrival date of new batch was already moved twice in the last 3 weeks.
3 weeks ago I placed an order fo R9 280X, the LTC difficulty is now 2x of what it was then. I think I will soon be cancelling the order as LTC price falls and the break even point is ca. 2 months instead of 1 month.