Yeah, I'll probably get a down bag because it's lighter eventually. I've got this sythetic fill Laze bag because it was on closeout, and was only priced at $80. Money was tight and I couldn't justify spending $220 to save like what would have been 1 lb 3 oz for a really light down sleeping bag. Although, in retrospect, I could have just gotten a cheap down bag at Walmart that wouldn't have weighed much, but I imagine it wouldn't last as long either.
That said, where I slept the other night when I went out, it wasn't raining, but because the side of the mountain I slept on was northern facing (not much sun during day), the sleeping bag was moist when I got up, and I had to air out even the synthetic bag. I wonder how bad the down bag would have been with the water?
It turns out to get that sleeping bag not only to fit in the stuff sack, but also to make it even small to fit in the backpack, there's a process you have to follow. First, you lay the sleeping bag spread out flat on the ground. Then, you crawl across it with your arms pressing all the air out. Second, you fold it length-wise in half, and crawl across it again. Last, you start at the top end where your head goes because it's wider, and start rolling as tight as you can. I've gotten to the point where on my second attempt, the sleeping bag fits in the backpack.
It doesn't sound like a lot, but it's a pain in the ass at 6:30 am when you're trying to get out of camp. Does this sound like more than most people have to do to pack their sleeping bag? Do down bags necessarily pack easier? If so, even more than the weight, easier packing would be a big reason for me to go down.