When you buy a Golden Scratch-R at the Kwikimart, you win donuts every time. For those of you who haven’t been brave enough to buy one yet, here is a screenshot of the game and your possible winnings:

But is it better than buying donuts at the donut store? Well, here’s what Lais had to say a few days ago (the currency used here is Euros, but it applies for other currencies as well):

You buy the cheapest set of donuts, 12 donuts, you pay €1,79, and that’s double the amount of donuts that you get with the worst result on the Golden Scratch-R, and double the price of it too. So if you can’t afford to buy a truckload of donuts but just need another dozen to reach the amount of donuts you need for that premium building you’re saving to buy, it might make sense to try the Golden Scratch-R and maybe you’ll get some extra donuts for the same price!

And Jayson had this to say (using $US):

I’ve calculated the Golden Scratch-R “Worth” using this site’s info –
to determine scratcher odds. I found the average donut output on the scratcher is 13.57 (or 13.7 per $1). This is slightly better than the $9.99 donut buy (13.2donuts/$) but not nearly as good as the $19.99 donut buy (15donuts/$).

So, even if you don’t have the occasional bigger win, each time you buy a Golden Scratch-R, you’re doing just as well, and even slightly better, than buying a dozen donuts through the donut store. And you’re making Apu very happy.