Plextor europe has promised that they will really do there best to keep improve the quality and didn't think they were behind the competition.
Truth is if you take a look at the complete market then the fact is there right. That is if you take the whole market and all points.
If you look at the more ussefull points and carefully look at PX-716 vs some populair drives then the conclusion is still why does the px-716 cost double ?
Maybe because they used a special ultra expensive paint for the plextor logo ?