i've drunk a fair amount of zero-alcohol beer, and the answer to your question is "yes", for reasons of flavour (alcohol changes this) and effect
("beer. it makes you drunk" - advertising slogan thought up by kingsley amis, i believe)
at least for me, depends. i don't like the way alcohol-free beer tastes -- it's just not the same.
sometimes i drink a nice whiskey because i love the taste (specially when paired with a nice cigar), but sometimes i drink to get tipsy because... well, it's fun for me.
it's like the difference between normal cake and cake infused with thc: i will eat cake for dessert, but sometimes, ingesting infused cake is more fun.