I don't think it really makes much difference who you go and buy your new apple from. By and large, you'll be charged the same price wherever you go, as resellers base themselves on apple's r.r.p. On the one hand, if you purchase directly from apple, then they get more of a profit from that item (direct sales are worth more to a company individually than sales to retailers, where they have to offer 10/20...% discounts). On the other hand, buying your new computer from a reseller provides support for the growing number of places selling macs, making it just that bit more likely that we'll see macs available in more and more places.
Either way, as long as you get a mac 😉