I still go, but then again I'm in early recovery (or the back half of early recovery - lol).
NA (and AA) isn't a going to meeting program, it's a 12-step program. That said, I went twice a day for a good part of the first year as I was hanging on for dear life. Today I go two to four times a week, with one that I just don't miss.
Although I keep in contact with my sponsor and a group of close friends in recovery, I also need to show up and see other recovering addicts at meetings. That's one of the places where I find conscious contact with the power of my understanding.
It doesn't seem like a burden. I go to recharge.