You do question yourself whilst waking up in the pitch black and stepping out into a cold, but it is worth the trouble. There is the option of driving (which takes about 30 minutes from the lakeside in Pokhara) or the option of hiking up in the dark (approximately 3/4 hours). The brilliant sunrise is just reward for hiking your way up, but almost everyone else seems happy to catch a bus up there so you will share the experience with lots of others.
But no matter how busy it might get or how hazy the morning is, you can never forget seeing the towering Annapurna Range slumber from its deep sleep and appear out of the darkness. That was most certainly the highlight, especially as the sun eventually shined directly upon the mountains to give a deep orange huefor a short while.
It was spectacular, and if you do have the chance whilst in Pokhara I would recommend dragging yourself out of the warm safety of your bed to do it. And if you are feeling particularly energetic, making the time to hike up instead.