I watched Friends avidly in the early years, when it was believable that a bunch of 20-somethings would spend their every waking moment with one another.
However, it became less and less believable when they started having babies, yet were rarely seen with those babies. And somehow they still all had the time to sit around the Central Perk without a care in the world.
I still like the show, I think its one of the best written shows on TV in spite of its flaws, but I long since stopped watching it religiously. I will watch the last episode, but I doubt I'll cry. While its had a great run and made the actors very rich and famous, its run its course for me.