Lost my iphone and need a new one before I go away

I lost my iphone and am claiming on insurance but can't get a replacement before I go away on wednesday. I really need a phone which I can get internet on whilst i'm there since its kindof in the middle of nowhere.
Is it a stupid idea to buy an iphone with a pay as you go sim to use whilst i'm there and then trade it in/ sell it as soon as i'm back?

It would be stupid, because you don't need an iPhone to connect to the internet. Just buy a pay-as-you-go.

You can purchase a cheaper smartphone and a pay as you go sim card. I don't know why you would need to purchase a IPhone. Just purchase the cheapest smartphone and pay as you go plan that you can find. You should be able to accomplish this for under $100.

I'd say that it's a stupid idea. IPhones cost $600+, and you're not going to get that much back if you sell it.

IMO, I'd rather buy a 'simple' smartphone, like a Moto G, which should be more than enough in the mean time.