I wasn't mearly talking about buying products, I was talking about life in general. most of the population can't deal with a third option. Why do you think we only have a two party system in this country? or most people think in terms of "good" and "evil?"
Its because the human brain works best with only two options.
As far, as buying stuff. yeah we could do a lot more in terms of making our own etc. but would you really be up to it? its hard changing behaviours especially when you live in a consumerism style society. I'd rather be as convinant as possible, because of my nature. I like taking the easy way out, most animals my age do.