i had my samsung s4 for 3 years without any lags, but somehow i fucked up charging, i would use this phone till today without any special lags and before i had s1 for 4 years, it was lagging as fuck at the end of the day, but it was first top model for samsung back in the day. Android is somewhere else than use to be couple years ago, and you can feel it after every single update. Yes there is not so much hype like about the iOS, but who cares.
I dont get this trend to buy new things couple days after release, ok if you are making over 80k per year you dont care probably so much about the money, but you won't buy it anyway, cuz your company will buy it for you. So kids and apple followers are buying overpriced phones and it makes me feel like, yes more expensive phone more i want/need it. Know a girl which started dating old fag to buy her new X... had to laugh about it