TFLE is a great game I recently rediscovered. As many TF's as you see on location and in pinhead's homes, Stern must have made a lot of them. Have never heard any reliable guesses on the quantities of each; sure would like to be in the know. It was the first time Stern offered three versions of an LE's - probably to justify slowly increasing quantities of what constitutes an LE today. I do remember them selling slowly and every distributor sat on piles of unsold LE's and pro's. Eventually the code dropped and it seems like things starting moving again with sustained demand for the title. It probably took a year but distributors sold out. Today TFLE or TF can both be found at good prices.
AFM on the other hand would be my final answer though - get your hands off me, you green martian! It plays smoothly, has good modes and many mortals have gotten to the final battle. Ruling the Universe is another matter though and can be quite righteous.
In summary - wait until you can get an AFM. Ooorrrrr... you could buy TF now, while you save up for the difference. Say this time next year, sell TF and adding to your savings, you can go out and buy that AFM you so richly deserve. win / win.