You really need to analyze how much you will use it and also the per-visit cost (if you don't join) of the lounges you would/could use. I considered joining but then found that the member lounges that I was likely to use had per-visit rates lower than the PP rate (on the basic membership), and I'd never use it enough for the top plan. However, with some airports and lounges, the formula for at least breaking even is met pretty quickly.