I know its very tempting to shop these sort of sites because the deals are so great. But just understand that the more popular they become, the more the small local gear shop suffers. Small shops simply cannot compete with these sites, especially when you can get certain items off the site for less than the retailer can get them at wholesale!! So, since many of the "little guys" are owned and run by fellow climbers, do them a favor by not shopping through these web sites.
PS: But I would have no problem if REI went out of business