If it get pulled and you enjoy it that much take advantage of the discount (every game on Game Pass has a somewhat discounted price for members) and buy it. There’s been a handful of games here or there I didn’t want to lose when they were retiring, and others that I played but didn’t really miss. I still save a lot of money compared to buying every game I ever want to play - especially given many of them I enjoy but not enough to shell out full price on