leandrodafontoura :
What are the disavantadges of hacintosh? There must be some, otherwise, everybody would do it....
btw, how are updates performed?
From experience, I must say it is a hobby in itself.
Installing OSX isn't too hard, especially if you built a machine specifically for that purpose, but the maintenance (updates, hardware upgrades, etc) can be challenging at first. The all-in-one solution out there are great to have a OSX running in no time, but the more you rely on those guides, the more difficult it will be for you to pin point problems down the road.
I must say I learned much more about OSX and the mechanics behind since I built hackintosh. Nowadays my installations hardly breaks, and are very stable, enough to decide to finally sell my 2008 Mac Pro last month, after 2 years of coexistence with my hackintoshs. Of course, I learned the do and do not through countless hours of forum, guides and several reinstallations.
So I wouldn't recommend hackintosh to someone who isn't ready for some kind of commitment, unless just to install it out of curiosity, without having to rely on it. And to justify all those hours, you need to appreciate the OSX environment enough. If you do, the pay-off is a custom affordable configuration.