How much does it cost you to make a bread? Much cheaper (and quicker) to buy.
Dude...it's WAYYYYY cheaper to make your own bread than it is to buy it.
When you buy the ingredients you dont buy a little package of yeast or anything like that my dad made 100 loafs of his own bread at 1/6 the cost of buying them. Don't try to use breads, pastries, cakes, or any food objects for an example because of three reasons.
1.My dad was a baker
2.My mom would put Iron Chefs to shame
3.I wiegh 348 lbs.
You don't get to 348 meat and patatoe lbs. by not knowing about food my friend.
And come to think of it those aliens don't look like they are wearing anything.