Having just come back from a complete break of one year I feel a renewed interest in playing, but, like anything, this is bound to fade overtime and another break will be necessary. Having said that, I have come back to discover that my friends list is almost entirely devoid of any activity with the exception of one person and I imagine that many people just get tired of playing something for one, two, three, or four years and as we get older our tastes change or something new comes along. That's just the way things are.