Growing it is exactly what I intend to do. We have a big bunch growing here, and we've filled the greenhouse and the garden with dill, coriander, basil, sage, thyme, chives, spring onions, several types of chili peppers, aubergine, oregano, and I even have some artichoke plants going. I'm not looking forward to losing all my fresh herb resources when I go stateside the end of this month either, so I want to start a similar list there as soon as I get back. The rocket came up because I didn't think I could get the seeds there.
There's a few different types of rocket, all easy to grow -there's flatter ones -more like lambs lettuce (which I really like, but then again, I love mustard greens and dandelion greens) and the sharp pointy kind we think of, also yummy, and red rocket is amazing.
A quick google search found many options in the US for seeds for 'arugula' so you should have no issue.
I learned something new here, because I never knew rocket was arugula in the US, it surely must have existed, but wasn't something I remember ever coming across when grocery shopping. But I know I was a much different shopper in South Florida than I am now. (And I didn't have a garden, so growing my own wasn't in my mind either!)