Sadly and despite being in his early twenties, my younger brother is one such exponent of certain hardware (read: fanboy!

).
I try to have sensible discussions with him re: it being
about the games but somehow, I'm always wide of the mark and/or he's unable to listen. He was pro-PS2... dismissing Halo (for example) as boring - until he bought an Xbox!

He still seems to hold the PS2 as being the 'be all, end all' however and despite now being a dual-format player, won't defer to the goodness that is Nintendo. Somehow it pains him to acknowledge that some titles might actually be worthy. Mention the 'N' word and he'll respond
every time with 'kiddie'
Thing is, he's a smart guy; I just don't get it.
Up until 'The Great Argos Push-off That Isn't' of 2003, I had the same with my friend. Due to the price, he relented and bought his second-ever console (after a PlayStation). These days, although he too appreciates titles on other formats, he can't sing the praises of his 'Cubey' enough!
If only I could get him onto 'Monkey Ball'...