Small quibble: I agree with No. 1, but I'm annoyed with the example of the "Good" version, because it gives no option for an amount that doesn't exist. Imagine buying your next coffee and having the barista swivel that iPad around to you to pay, and your options for tipping were ONLY "$5, $10, or $15." In reality, there's always a backdoor to put a custom amount, so I acknowledge I'm being fussy.