It is important if you want to make a successful project. Coins with bad distro don't go very high because smart people (the ones with the money) don't buy it. Litecoin wouldn't be where it is now if it wasn't fairly distributed.

From all the coins i have been looking at i see these as failry distributed: Litecoin, Unobtanium, Vertcoin - that's it. Maybe doge, maybe digibyte, maybe megacoin, maybe clams (but these all go with a questionmark) Bitcoin wasn't fairly distributed (stealth, private premine, ninja launch)

Well, the distribution certainly affects market sentiment a lot a long time into the future.