Question about iPhone 8 and X (10)?

So i've received an iphone 8 as a gift with the receipt. Should I pay extra and just buy the iphone x? Apparently apple are going to stop making this model and maybe it will be worth a lot more in the future? More rare? Or stick with the 8?

Are you joking?
RARE?

Upgrade if you want, look at the futures and hardware not rarity smh.