i bought mine in december 2011 and in first 3 weeks it got peel at the silver frame and took it to sammy first they refused to change it and repair it and said it falled but eventually after a threat of making them aproblem they accepted to change the back housing and waited 3 months so they repair it and was never satisfied with the build quality . i kept it with me but refused to go for sammy again i bought an htc one x.
though i took care of my note and always kept it in a cover i got that problem. hox never in cover felt from me twice at ground and looks almost new
the problem is not being a slave to phone, the problem is when buying a phone with 655 euro you should get a good build quality and good support. if it felt from your hand and broken its not your fault but if you handle it with care that is.
i had an htc hd2 since 2009 and used by my own children without housing and screen protector comparing that with sammy diffenetly a good quality phone