Is creatine loading really necessary?

This is very controversial as there are researchers like Greenhaff, et al (1993), who show that it is beneficial to load, and others who show no benefit. The ones who show no benefit recommend 5g per day only for 6-7 weeks and claim that supplement companies advocate loading merely as a way of trying to sell more creatine. If you compare this to companies who advocate a 10g, 15g or eve 20g loading phase and maintenance of 5g per day, then the non-loading advocators are correct. However if you compare 5g per day to the example above you will use a lot more creatine over the few weeks by not loading; (Over a 52 day period using 5g per day throughout uses 260g in total; compared with just 166g in the above regimen).