While in Italy, arugula was translated as 'rocket' also, but the Italian word is rucola, so the translation certainly made sense, but it was the same in Prague as well. I did not realize the word was used more globally.When we visited Australia in '88 we saw "rocket" salad everywhere. Later we learned "rocket" was arugula which was just coming in vogue in the USA at the time. LUV it! And much more nutritious than Iceburg, I can't remember the last time I bought iceburg. I can't help but wonder what the cost of arugala is there? Just curious.
I eat arugula frequently as it is possibly my favorite salad green. I love that peppery flavor. It is not expensive, IMO, but it depends on availability, as well as one's perspective on what expensive is to one's pocketbook. It is a seasonal green of course, harder to find in winter in this part of the country. I used to grow it on in pots on my deck in California so that I could add it to sandwiches or salads anytime I wanted. I could grow it year round there. I actually have some growing in a pot on my back deck right now, but it bolts very fast in this heat, so I don't generally grow it here since it is readily available in stores here.
I prefer romaine lettuce over iceberg lettuce, but either one is good for bread replacement in making a 'sandwich'. When I stopped eating bread (to loose weight) I used romaine more often than icerberg for that purpose. I still prefer wrapping certain sandwich items in romaine over using bread. Even peanut butter tastes good on romaine.
My husband said he wanted to start making bread after his retirement, but has not started that yet. I used to love making bread. Kneading bread by hand was one of my favorite things to do, and I adore the odor of yeast as the bread rises. I used to make pasta, too; not as much fun as breadmaking, IMO, but certainly not difficult and I can easily do it again if pasta becomes hard to find.