- my orders are usually above the generic free shipping threshold
- most smaller item purchases can be grouped within two or three days to get above the threshold
- if it's an emergency shipping price won't matter. But I'll also freely choose what service and what retailer to get it from, if a shop is fasteror more reliable than Amazon for instance.
- Prime day sales aren't great
Might not apply for your case, but for me getting off of Prime had virtually no impact for the shop part (I was using Prime Video, and Music with Alexa, but I also got rid of both for different reasons)