Well you are obviously not the average smartphone user, if 2gb or 3gb isn't enough for you then you will find a reason why 4gb of ram won't be enough for you. The m8 with 2gb of ram, being out for almost a year now, is still one of the fastest and most responsive smartphones you can purchase today. Also due to to cpu limitations there was no way to get a phone with so much ram anyway. With the newer 64bit chips coming out you might just get your wish in a few years.