A .com address is one of the most sought after on the internet, and .com.ag is the same for people in Antigua and Barbuda. If your business and/or your customers live in the area, then this is the domain you need. Of course, you've got other options if you want to get creative. If you sell silver products, then .com.ag makes a lot of sense, since it references the atomic symbol for silver. Same with agriculture sites, and so on. It's a flexible domain with lots of options, and who doesn't like that?