Comment I always cancel my S&S after delivery (Score 3, Interesting) 34
There's a very high likelihood (Amazon shenanigans or not - there is inflation to think about!) that a later delivery will have a higher price than the first delivery - plus it's also likely there was a discount on the original price (which may be different or non-existent for second or later deliveries) and you used S&S to get a second discount.
What I do is set the next delivery after the initial one to be 6 months (so I have plenty of time to remember to cancel), get the first S&S delivery and then cancel the S&S. It's too much of a faff to track multiple S&S's to get the higher discount levels (those higher discounts only apply to the second or later S&S deliveries and they have to be in the same month too). I just treat it as an extra 5% off for a little bit of effort to remember to cancel it.