Most of the toys these days are cards, but you don't need to buy in that much bulk: https://www.orientaltrading.com/toys-games-and-novelties/nov...
The first one has 144 mini skateboards for 20 cents each.
Right, because people who don't have money/time to cook real food are definitely doing that. Besides, deep frying is not the only way to cook potatoes.
To your second point: This is where exact apples to apples comparison breaks down. The sane home cook skips deep frying at home and associated hassles unless it's a special occasion. Microwave the potatoes or boil. Fast, minimal cleanup, and now it isn't junk food either.
It takes me about 7 minutes to fry a hamburger patty on my Griddle (to rare!), ignoring the heat-up time and clean-up time. The actual cooking is quite fast. On the other hand, I can end up waiting an hour in line at In-and-Out. So while I agree that it's not an apples-to-apples comparison, the economics articles I've seen that compare bsed on fully loaded costs (to the best that they can) seem to conclude that fast food can be about 10-20% cheaper than grocery.
well, akshually... https://www.fda.gov/food/process-contaminants-food/acrylamid...
however the main concern with fried potatoes is cardiovascular, not cancerogenic.
The story of frying and cardio is still ongoing; I've seen several full reversals in the public health field over the past 30 years. It's really painful being a quantitative physical biologist watching the press around papers that when carefully inspected provide little to no evidence supporting their position.
So $1.30 if you buy the food yourself and make it all at home from scratch. Add $.70 for a cheap toy and you have a happy meal (McDonald's buys toys in bulk - you can't get toys for that price unless you are buying thousands)
Above prices are what I'd pay at my local higher priced grocery store online - I can get better deals at other stores but they don't have a good online prices to look up.