I will have to admit I agree with ew. I currently have an old Dell running #! for a variety of reasons but what first opened the door was wifi out of the box. I'm not incredibly computer (especially Linux) savvy, I can search and usually find answers but knowing what to do in the first place is deficiency not there. I wanted a computer to stream hulu on my tv (besides my everyday mac) and had an old dell laying around that was too slow to run xp. I had experimented with Ubuntu on my mac and started trying various distros on the dell to see what fit. With each distro the first thing I checked (and last if it didn't work) was wifi. I was not going to try to fix a distro that didn't work with my dell's wifi, again I'm not that good at Linux. Somehow #! worked great on both my dell and mac so it won the day. I still do a little distro hopping and experimenting but still if the wifi don't work I don't go any further.
I use #! for a variety of reasons that have all been said by one or more people already.
A. it works - including wifi (important on my laptops) simply works. (only issue is suspend on my macbook, but not a huge deal)
B. it's lightweight - It allows my old dell to play hulu through my TV, it had issues with every other linux distro I tried (mostly speed)
C. it's teaches me - I'm far from a computer expert and using crunchbang has required me to learn a more
D. no set date for reinstall - I hate reinstalling/major upgrades and there is no preset release schedule requiring me to reinstall/major upgrade in 6 months. (also tried rolling releases but spend more time maintaining than working)
E. Minimalist - nuf said.
F. Last but not least - saved my life - Mac OS 10.9 upgrade broke my macbook (I caused the issue with my partitions) and untill I had time to reinstall, #! live cd allowed me to continue to work.
Basically: I'm alive! If I weren't alive I wouldn't be feeling positive or negative, so why waste time feeling negative. Another way to look at it, as long as I'm alive no mater what's happening it could be worse (dead) so I might as well be happy with what I've got. (of course, now we could get into religious aspects of post-life but I won't go there).
I downloaded the update and when I went to install it, it got to the screen that said to choose the hard drive to install to and would not let me install on either of mine. A message came up either saying too little room or simply 'cannot install on this drive'. I've dual booted a couple of different distros but recently deleted my partitions and am only running OS X.7 with #! either in a virtual machine or live CD. It may have been that I messed something up when deleting my partitions and adding them back into the Mac partition (I'm not the most competent tinkerer, with no training whatsoever). Long story short it did not work great for me and I believe I have to reinstall mac OS X (to fix whatever screwup I did with the HD partitions) then update. However with that said, since it gives you the option of which HD/partition to install it on, it should play fine with a dual boot, as long as yours is set up better then mine was....
P.S. Good thing I had that #! live CD so I could still get my grad school homework done.