Benefits of using iPad 2

I live in Thailand but I go to U.S. annually or bi-annually. I spend most of my time in Bangkok, Thailand and sometimes move in rural areas. I’m just wondering if I will buy an iPad 2 which I will use primarily in Thailand, are there any benefits on paying to have a 3G connection? Or can I have an internet connection in the ban nook even if I don't have a wireless connection?
