Mike
I much prefer leather myself, however, I believe it would be scratched or torn or chaffed upon repeatedly climbing in to the car. I chose alacantra for this reason. It is cheaper and more easily replaced. Go with what you want.
I'm not sure what the cost of the leather option is now but when I bought my GT it was an extra $300. I DEEPLY regret not getting it. The alcantara wears very poorly. Mine had a hole in it after only 900 miles. Several people (not me .... yet) have complained about the grommets getting pulled out. Replacement leather seats AFTER you buy the car are $1500 !!!